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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #1 · (Edited)
Finally getting some time to post this, it's been a long time coming. This is my 5spd 2000 Eclipse GT, and she's been in my care for about a year now after sitting for 5 or so years. Pretty much got it before it was about to go the junkyard since the previous owner hasn't been able to sell the car.

Currently, I'm just trying to improve the drive ability of her and make sure she's running good before dropping in performance parts. The SDS I do have isn't going in anytime soon, I want to build up an engine before that happens and pretty much do a swap with the one that's in there.

Anyways, I will be posting more pics soon since I do only have these two at the moment. I might add a link if I post more pictures.

43667

43668


Current list of mods:
Lowering springs
Godspeed Project Coilovers
03+ Tail lights (I do like the TYC's, but I prefer amber turn signals over red)
Depo black projectors with Sylvania LED lows and Halogen highs
Headers with Cat delete and Apexi N1 Muffler

List of events:
Sept '19 to March '20 - First startup after 5 years. Check all of the belts and such.
Nov '20 to Dec '20 - Rebuild of engine and removal of RIPP SDS.
Jan '21 to Feb '21 - NGK spark plug wires, Denso Iridium TT spark plugs, brand new distributor cap and rotor, junkyard distributor. First oil change after rebuild ~700 miles

Current Issues/To do:
P0400 - I'm not entirely sure why this is triggering, maybe from the headers missing the egr port. I do not have anything on the EGR port but I did find a thread for this.
P0421 - Pretty obvious for the reason, not concerned about it.
Cruise Control - Does not light up with ignition on. Unknown reason, a nice to have but not too concerned either.
Paint - Yeah, 5 years will do that without a wash. Either full respray in original color or wrap, haven't decided
Spoiler - The hooks on the car are from the previous owner. I don't believe he has it anymore so I will be removing those when I get the paint done.
Brakes - As suggested by Murkrow, I may start looking into options here. Will have to do more research, but seems like a great idea.

Updates:
2/24/21 - Ordered Godspeed Project coilovers to replace broken lowering springs.
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #2 ·
Updated the thread. I've gone ahead and installed the Godspeed Project coilovers. They are on, but I definitely need time to adjust them on my day off because this wheel gap is looking like monster truck territory.
43697
 

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The cruise control issue can be a number of things including a burned out 3rd brake light, a bad cruise control unit, a large vacuum leak, etc. You may also want to pick up tires in the correct size since your speedo will read higher than you're actually going. 215/50R17 is the factory size.

If you're looking for your next upgrade the brakes are never a bad idea. You could swap to Endeavor 2 piston brakes or Evo 8/9 4 piston Brembo brakes in the front. Your 2000 model likely has 2 piston calipers already but the Endeavor rotors are larger in diameter. The front Brembos use an even larger rotor but the cost is considerably more. In the rear I would only recommend the Brembo brakes.
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #4 ·
Wow it was an eventful couple days off. The Eclipse definitely had serious problems that showed up when I drove her after getting the ride height set and aligned. Both front wheel bearings had started to make noise and had to be replaced. Along with the axles too since they started leaking grease all over the underside of the car. Running very well now and the ride quality is so much better than those lowering springs.

The next part I am planning on working on is the sound system, the door speakers are completely shot and the rears sound so tinny that it hurts. I've had to redo the wiring since the factory harness was messed with and I believe I have the factory amp under the passenger seat. The speakers are already aftermarket so it's not hooked up, but I am debating on which route I should go.

The cruise control issue can be a number of things including a burned out 3rd brake light, a bad cruise control unit, a large vacuum leak, etc. You may also want to pick up tires in the correct size since your speedo will read higher than you're actually going. 215/50R17 is the factory size.

If you're looking for your next upgrade the brakes are never a bad idea. You could swap to Endeavor 2 piston brakes or Evo 8/9 4 piston Brembo brakes in the front. Your 2000 model likely has 2 piston calipers already but the Endeavor rotors are larger in diameter. The front Brembos use an even larger rotor but the cost is considerably more. In the rear I would only recommend the Brembo brakes.
That does sound like a good idea for the brakes, and my eclipse does have the 2 piston calipers. I haven't really thought about brakes until I realized that I didn't have ABS, so I'll be adding that to the list of things to do!

As for cruise control, I've looking a little bit in to it and I did find the same things you did say. I'm fairly certain that the cruise control unit isn't working since "cruise" on the instrument cluster doesn't light up before startup or when the switch is activated.
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #5 ·
I’m gonna guess that editing the original post needs approvals so I’m going to stop (unless it’s for another reason.)

Anyways, I found another 2000 Eclipse GT at one of the cheaper junkyards around me and scored big on interior parts. Full leather seats and original radio and amp plus speakers. They are almost mint for passenger and rear seats, driver seat is used for sure. Seat mechanism was broken for the passenger seat so I swapped the rails over from mine and now they work.

I also got the stock radio and amp plus wiring harness. This one has both a tape and 4 CD player. I’m not familiar with the radio options on this car other than with or without Infinity Sound. Original harness is messed up and the factory amp wire in mine to the radio has rca for aftermarket radios. Overall the sound is amazing, better than my Bose sound system in my Infiniti I30. One speaker is blown, but I just left it unplugged for now until I find another one.
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #6 ·
Not too much to update on, but I recently changed out the bulb in my cluster, clock pod, and climate control switch with LEDs. I need to work on the cluster since I didn't realize there was an orange tint on it.

However, one new problem did pop up while it was raining today. Fuse 13 in the engine compartment blew and I stalled while rolling through an intersection. I was able to safely roll onto the side of the road with hazards on. Took me a while to notice that the SES light was not illuminating when the ignition was switched on, so that took longer than it needed to fix. I seem to have some sort of electrical wiring issue and I believe that there could be some possible explanations for this: Bad main ground (The recall one for the headers and the ground), Crankshaft position sensor harness (Noticed a crack on the white wire on the vehicle side of the harness), One of the O2 sensor wires (One of them might need to be redone since it was touching the headers at some point), or the whole wiring near the engine compartment fuse box (It is a mess, I have no idea what goes where). That's where I am at now, though additional input on more harnesses to check would be appreciated.
 

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2000 Eclipse GT 5 speed everything is new Custom paint blue black metal flake roof 18" wheels
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132 Posts
Updated the thread. I've gone ahead and installed the Godspeed Project coilovers. They are on, but I definitely need time to adjust them on my day off because this wheel gap is looking like monster truck territory.
View attachment 43697
Give you a great deal on some brand new 20s (the only picture that I have this one they have less than 20 miles on them ) I will give you a $800 discount
43791
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #8 ·
Give you a great deal on some brand new 20s (the only picture that I have this one they have less than 20 miles on them ) I will give you a $800 discount
Those do look nice, but 20s are a bit too much for me. I'm probably going to go with another set of 17s or 18s, but I do appreciate the offer
 

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2000 Eclipse GT 5 speed everything is new Custom paint blue black metal flake roof 18" wheels
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132 Posts
Those do look nice, but 20s are a bit too much for me. I'm probably going to go with another set of 17s or 18s, but I do appreciate the offer
It's absolutely know problem yeah I was thinking of a certain look and I didn't find it with these wheels I ended up with awesome 18s that did.
 

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Discussion Starter · #11 ·
Oh right, I forgot about updating this thread with that issue. I did make another thread on this here with the problem solved. TL;DR it turned out to be 2 O2 sensors with heat damage the Crankshaft Position Sensor rubbing on the accessory belts shorting out.

Recently had to replace the starter because it died on me out of no where, similar to one of my other cars. Managed to start it with the "push-to-start" feature on manual cars. :LOL:

Other than maintenance, there hasn't been too much done. I'm waiting until after next week to make some plans to do a Diamante intake swap and hopefully fix that EGR code that keeps coming up. And if doing the Diamante intake swap would cause the code to appear anyways, then I won't exactly bother with it too much.

Edit: added info on O2 sensor damage
 

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Discussion Starter · #12 ·
Surprise! I have another update with my Eclipse since I had a bit of time to work on her today.

First up is the oil change. Nothing too exciting, used Castrol Edge 10w-30 since it’s starting to get warm in my area. I usually run 5w-30 in winter and 10w-30 in summer. Never gets below freezing here but you never know.

The more exciting part, the P0400 code is finally gone! I managed to find one of my extra EGR solenoids that I bought a year ago and swapped it in after the oil change. I went through about 3 of them before all my EGR codes went away.
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #13 ·
Installed a new head unit today for the Eclipse. Nothing too exciting as I am borrowing it from one of my other cars while I try to get a double-din size radio. Works great and sounds a great deal better than the original one I had.

For the pocket under, I am using a din pocket from a 95-99 Maxima since I had one lying around and fit decently in the brackets.

43839
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #14 ·
Found a mint condition dashboard for the eclipse over the weekend and pulled it out yesterday. Surprisingly a lot easier than I thought it would be to take it out but nonetheless I was able to swap it in to mine the same day.

Any tips to prevent cracking in the future?

43873
 

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Some have claimed that the cracking is due to vibration from stiffer engine mounts being installed, such as the prothane ones. Someone suggested using prothane only in front and rear mounts, and keeping the two side mounts rubber. It has also been suggested that the cracking is not as much of an issue with the v6 models.
I have an 05 gt with stock rubber mounts and never had any cracking. I actually have prothane mounts sitting in my closet until my stock ones wear out, or I get motivated, whichever comes first. Probably start with just replacing the front and rear with prothane, and see how that goes.
 

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Discussion Starter · #16 ·
Some have claimed that the cracking is due to vibration from stiffer engine mounts being installed, such as the prothane ones. Someone suggested using prothane only in front and rear mounts, and keeping the two side mounts rubber. It has also been suggested that the cracking is not as much of an issue with the v6 models.
I have an 05 gt with stock rubber mounts and never had any cracking. I actually have prothane mounts sitting in my closet until my stock ones wear out, or I get motivated, whichever comes first. Probably start with just replacing the front and rear with prothane, and see how that goes.
I want to say my dashboard cracked because of being out in the sun for 5 years without any care done to it. It gets around ~110 in the summertime here and the sun pretty much beat on it everyday.

I’ve taken a look at all my mounts and I have 3/4 mounts that are prothane. The original owner gave me all the parts he had and there’s another prothane mount for the transmission (I think it’s the transmission anyways) by the firewall.

Having prothane mounts was more of a necessity back when this car used to have the RIPP SDS.

Edit: I probably should’ve mentioned but I did pull this dashboard out of a 2004 4 cylinder gs. I don’t know if the 2003+ dashboards are just stronger because every time I so much as look at a dashboard from a 2000-2002, they just fall apart. Especially that cluster cover
 

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2001 Spyder GT
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I had to replace my dash because of cracking in an 01 Spyder . There are a few things you can do to prevent cracking .. Do not use Armor all ... it contains silicone and will seal the material and that drys it out and will crack sooner than later .Do not spray Windex on the windshield inside.. the chemicals fall on your dash and this also causes cracking.. Spray your window cleaner on the rag and clean it that way.. I recommend 303 Protectant ..
303 Aerospace Protectant for Plastic, Vinyl, Rubber, 32 oz-Ultimate UV Protection - Keeps Vinyl,Rubber, & Plastic Looking Newer, Longer-Prevents Fading And Cracking-Restores Color And Luster (30313) - Walmart.com - Walmart.com
You fellows with convertibles will like there fabric guard.. Just paint it on like you are painting your top .. when it dry`s the water will bead up and run off easy . I do this even when installing a new top.. After time our tops start to leak even with no rips.. If your cloth top is leaking this is the product to use..
303 Fabric Guard, Water Repellent, Safe for all Patio Furniture Fabrics, 16 fl oz - Walmart.com - Walmart.com
Lastely you could put one of those sun screens in your windshield to block the sun... or park in the shade ...
Cloth top demo... I do it the same way this fellow does... just paint it on...
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #18 · (Edited)
Another update, though not a great one at that. Currently I am battling with a fuel trim malfunction on both banks (P0170 and P0173). Fuel trims indicate a lean situation with LTFT maxed out at 12.5 and STFT fluctuating usually in the positives and sometimes 25.

So far I have replaced my front O2 sensors for both banks and got proper extension harnesses, replaced MAF (old one was out of spec) replaced the MAP (the sensor on top of the manifold, also out of spec), replaced the FPR (old one was stuck partially open), and did a proper SAS adjustment with the scan tool since it had been messed with. Fuel pump is relatively brand new, had it for less than a year. High pressure side hose was replaced with fuel injection lines from Autozone since the connector had snapped. New connectors were used for both ends.

I have already checked for leaks and vacuum leaks and came up with nothing.

This has me stumped for a while now

EDIT: Turned out to be all 6 injectors. Pulled the old ones out and all of them smelled like stale gasoline, to the point of me almost losing my lunch, and had a bunch of gunk on the fuel rail side.
 

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2000 Mitsubishi Eclipse GT 5spd
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Discussion Starter · #19 ·
Been a while, figured it's time for another update since I've made some more progress on the car.

New (from the junkyard) Mitsubishi MAF replacing my old one that was blown through with the supercharger system. I did try to use a Delphi one from Autozone, however, I had very weird driveability issues that I eventually returned it and picked this one up. I did find a thread regarding MAFs for Eclipses and now I know the reason for that issue.

P0170 and P0173 codes have gone after a while too, though I doubt they stay that way as I also discovered that both my front bank upstream O2 sensors read 0.040 V with all sensors disconnected (both banks, both upstream and downstream). ECM might need to be repaired or replaced, but since my Eclipse is a 2000 year model, replacing ECM means also replacing the immobilizer (unless I delete it)

The passenger control arm has been replaced, I had excessive positive camber even after maxing out my camber plates on my coilovers. Both sides are able to match camber now instead of one being aligned with the other at positive 2.

And finally, I bought a swap kit for the 6G75 from one of the Facebook groups for the 3G. Not sure if the person is still advertising them but I'm willing to bet that if enough people are asking, they could get another batch made. Now I just need to find myself a 6G75 :LOL:
 

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Discussion Starter · #20 ·
Found a set of clear 03-05 front turn signal light assemblies at the junkyard today. I’ve been wanting to swap the 03-05 from bumper on my Eclipse but I wanted smoked turn signals like I currently do right now (the original post was before I switched). However, with how rare aftermarket assemblies are for 03-05, I’ll just stick with these for when I get the new bumper.
Hood Automotive lighting Aircraft Motor vehicle Automotive exterior
 
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