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For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

420a

  1. RexEclipse2g

    420A What engine mounts fit a n/a eclipse?

    Ive been looking around for a new set of engine mounts because mine are starting to get worn, ive been looking into just upgrading to polyurethane mounts but cant really find a source, I was curious if the 4g mounts could still be used or even the bushings.
  2. 1997 Mitsubishi Eclipse GS Build (In-Progress)

    Street Build 1997 Mitsubishi Eclipse GS Build (In-Progress)

  3. 420A 99 Mitsubishi Eclipse GS, no start

    The ecu went out of my eclipse so I ordered one off eBay, and installed it and the car was running great for about 3 hours total and then it just died. It was still getting spark but no fuel. (Would run off ether) so I changed the fuel filter and pump and still won’t run. But now it doesn’t have...
  4. Rescooperator

    420A 2gNT Upgraded Radiator for 420a?

    I just got myself a '99 Eclipse RS and the radiator started leaking. No overheating yet, but I wanna fix it asap and was hoping to upgrade the radiator to an aluminum one, but I cannot find any of them anywhere for an Eclipse RS.Also, any take on a half-rad and what type I could use in place...
  5. jesse12345

    Resolved 2gNT 420a to 4g63 swap complete

    So I know I said I wouldn't post this, but I'm just way to happy and proud of what I have accomplished. Some people know about this build and alot of people don't. This thread should answer everyone's questions they've had about doing this swap.I'm going to start off saying I'm not a...
  6. AlphaCentauri

    420A 1996 Mitsubishi Eclipse Purchase Suggestions/Help?

    hey everyone! i’m newbie to the dsm community, but have previous experience in the welding and mechanics department. i’m interested in getting this 1996 eclipse with some mods done to it (fast and furious replica) but I don’t know if anything is wrong with the car or inaccurate, and i’m not sure...
  7. Jtdemler

    420A 2gNT Coolant Hoses

    Been having issues with my coolant hoses lately, it's been blowing holes one after another. They definitely aren't in good shape by all means but at least they have been fairly easy fixes. I've decided to do them all maybe a cool color or something and been looking for a kit.If anyone knows of...
  8. Rigoberto

    420A P0134 Bank 1 Sensor 1 location

    Hey guys just wanted to know if anyone knows where the location for p0134 o2 sensor is at on a 98 eclipse gs.
  9. 1999 Eclipse GS

    Street Build 1999 Eclipse GS

  10. srp-pk

    420A Relay click noise and rad fan turning on for a sec

    Hi everyone I really don't know how to name this thread.1995 Eclipse gs 420a standar Motor restored Mobile 15w40 oil All new sensors except coolant temperature and IAC valve. New coil pack, spark plugs (double checked on the gap, set to 0.050) and wires. All fuses checked and replaced the...
  11. GST Colton

    420A 2gNT want to add turbo

    Hey I recently bought a 97 gs eclipse swapped to a 420a engine. and i wanna go turbo lol. just wondering if anyone know good sites that sell turbo kits looking to spend anywhere from 1-8k looking to push around 350-400hp
  12. Stizzydrew

    420A DC sport UPPER strut tower

    Hey I’m new to the dsm community and I know there must be a few on here who know where all the goods are at.. I want a dc sport UPPER, not rear.. upper strut tower but I can’t find it on eBay or on google search.. maybe one of you can help me find a upper dc sport strut tower? Please and thank you:p
  13. 1997 420A Mitsubishi Eclipse 2G

    Street Build 1997 420A Mitsubishi Eclipse 2G

  14. jesse12345

    420A SPA Turbo fuel management unit rich idle

    Hey all so I'm using the SPA Turbo fuel management unit, I think max is 14:1 on it and it works great, I'm running real rich at idle and my fuel pressure at idle is around 29 lbs. Have any of you tried that unit out yet? I know I need to pick up a megasquirt but I'm running low boost for now...
  15. 1998's Eclipse GS

    1998's Eclipse GS

  16. jesse12345

    420A 95 talon esi auto stuck in limp mode

    Hey all back again except with an unusual issue. I recently got my engine up and running in my talon, she's been sitting for 12 years. The car only has 79k miles, and I replaced literally everything you can on the engine and transmission. I even went through the valve body. If I leave the...
  17. Runiondsm

    Saving a forgotten 2g eclipse

    I thought I'd just share my little project here with everyone. I have owned several 2g chasis over the years and have gathered a bunch of parts. I also had this old parts shell left for years gathering weeds and decided to save her. Most people wouldn't and since it's not a gst or gsx, which I...
  18. Gmosiman

    420A 2gNT MT swap won't start

    So, I built this car in about 6 months, I definitely don't know much about electronics or the ecu so I'm at a loss. I did a manual swap on this 420a, I think the trans code is nvt350 or something like it. I found a good walkthru forum about it. Pretty much followed it step by step. Aside from I...
  19. 98 Talon 420A turbo

    98 Talon 420A turbo

  20. Rigoberto

    420A Speedometer not working

    I recently took out my transmission out my eclipse. I swapped out the speed sensor while I was at cause I thought maybe it would fix my speedometer but it didn’t. Should I replace my gauges? Or could it be something else??You must be registered to see element.You must be registered to see...
  21. jesse12345

    Resolved Maximizer lsd install issues

    So I recently got a maximizer lsd for my 95 talon 420a. The ring gear position is about half an inch off, so it doesn't fit properly in the differential. I have no idea if they all are like that but it's frustrating. If any of you knows how to get around this issue I'm all ears.You must be...
  22. 2G 2g 420a K-series swap

    I know there are some threads. But i was recently given a 420a auto 2nd gen. Im not too familiar with them as i have always had 1g gsx/tsi's. But given the dying, expensive market, and the lack of reliability of mitsubishis (loved the 4g for years). i am considering alternate engine options as...
  23. Rigoberto

    420A Clutch bolts issue

    hey guys I’m having a issue putting all 4 bolts back into my clutch. I can only get one in and then the other 3 won’t align at all with the rest it’s mind boggling but if anyone has a solution let me know or maybe I’m doing it wrong. Side note: I didn’t replace my flex plate can that be the...
  24. Rigoberto

    420A Transmission problem - Broken Bellhousing

    You must be registered to see element. is it okay to put this transmission back in? Or should I buy a new one instead? It came off when I got the transmission off and I saw the crack when I was unbolting it as well.
  25. Jonnychance

    Car revving by itself, plus more with fan on

    My 420a started revving by itself after I removed the battery and added trans fluid in. I thought i snagged a wire, but didnt see any cuts. It revs more when I turn on the fan.
  26. Jonnychance

    2G 2gNT VSS Locking electrical connections

    You must be registered to see element. any tips on undoing the lock on this harness? It's for the speedometer on a 420a. I can barely get my hand down there and we all know how sticky connectors can get. If I cant undo it maybe I can take the bolt out bring the entire piece up without undoing...
  27. Gavinrich25

    420A Regular clutch on 2gNT (Saga Continues)

    Alright bought this 1997 eclipse rs with a bad clutch didn’t think anything of it I get the transmission off and it’s not a modular clutch I looked the clutch up and it is a pretty expensive one so I was confused what was wrong. Another thing with the trans the clutch fork was broke and it had a...
  28. Rigoberto

    Resolved Transmission drain nut

    Anyone know where the transmission drain nut is at on a 98 eclipse gs I’m trying to drain the fluid to get to my clutch cause it needs to be replaceYou must be registered to see element.
  29. Gavinrich25

    420A Cranks no start (420a)

    Now now before you say check the threads I have and have seen doesn’t sound right so here some background on the car...it is a 1997 Mitsubishi eclipse rs model It cranks slowly somtimes but it does crank and if sombody has a reason why somtimes it’ll be fast then somtimes slow that would be...
  30. Pearl420a

    Resto-mod project.

  31. jesse12345

    2g eagle talon 420a awd trans swap

    I have a 1995 eagle talon 420a with a fresh turbo add on done, now I'm onto the transmission. Has anyone ever swapped an awd trans from a pacifica or a town and country? I know some of them had awd transmissions and were also a 41te. Mine is an automatic and before I drop heavy coin on my fwd...
  32. jesse12345

    420A High oil pressure blowing filters

    Okay so I just got my engine put in about a week ago and finally wired everything up car started it runs great but my problem is oil pressure cold at idle was 60 to 70 and when I'd Rev it up it go well past 100 and my first oil filter I had was a small 348 the gasket blew out of so I put a 085...
  33. 420A CI MotorSports Low compression short block

    Hello has anyone ordered any sort of engine/block from Ci Motor sports. Yes i’ve searched the forums not many people speak on it. I’m looking to buy a built block from them and wanted to hear any reviews in dealing with them. The purchase in question “ You must be registered to see element. “...
  34. 420A Does anyone know where to find a Vapor Canister Purge Solenoid for a 98-99 Eclipse GS

    I've looked everywhere online and can't find one for a 98-99 420a. Anyone that can help me find one online, I'll give you $10.*edit I messaged Miller Import parts and he might have one. Thank you fellas. Here is the location of the part if anyone has a parts car: You must be registered to see...
  35. DSM newbie

    2G New owner electrical problem

    Hey everyone,I’m glad to be the new owner of a 1999 Mitsubishi Eclipse GS. Car has a 420A motor with a manual transmission. I am in the process of tearing the car apart and then rebuilding it but I am having problems with some of the wiring the previous owner did to the car. I would like to...
  36. 420A Mufflers/cat-back for a 420A?

    Hi tuners. I have a 97 Eclipse RS and I'm planning on changing the exhaust so I can get a little bit louder. I read a lot about this, and I know that 420A models tend to sound ricer if you do a straight pipe since they are non turbo. Do you guys know a good setup for a muffler/cat-back that...
  37. Canatalon

    420A Fuel sending unit/fuel gauge float?

    Hey everyone, having some trouble finding some information on the fuel sender or fuel gauge float. Was recently informed that the mr392017 part had been discontinued, which sounds about right to me I’ve searched this forum and the internet and have only come up with the discontinued part. Unless...
  38. wtfhaks

    2G new to the dsm scene - 96 eclipse GS manual

    Whats up guys i just got my first dsm car, a 1996 mitsubishi eclipse GS with the manual transmission. 243k Miles. I'm from Yelm WA but I like to hang around Lacey and Olympia quite a bit, so hit me up if you're from around here!
  39. Michael Snipes

    Edz Swap

    I know many have done the swap but I can’t find much info that isn’t 10 years old. I’m wanting to do the edz 2.4 block with srt4 internals, I need to know what motor mount I need for the passenger and what oil pan will work? The info would be greatly appreciated.
  40. 420A HELP! P0731 fault

    I have a 1998 eclipse gs automatic i got it a year ago, it's my daily not looking for performance I just use it to go out to the stores, work etc.. Not too long ago on my way home I got a p0731 code gear 1 incorrect ratio and p0715 input speed sensor circuit. Well I changed that sensor already...
  41. Alexonline529

    Need help. Injector?? What n where can I find this

    Hi guys, I just recently got a 98 rs 5 speed. I was told it was a built car but engine sounded weird. Person I got from did not kno how to drive stick. But said engine was built n had turbo n noz but previous owner removed put back to non turbo. My mechanic found a bent valve n bad injector n...
  42. 420A 2gNT Cranks but no start

    Hi guys. I just bought a 1998 Mitsubishi Eclipse GS off a close friend of mine. Long story short, it was his high school car that he junked about 5 years ago and I thought it would be funny to buy it and bring it back to life. No laughs yet, just cries I drove it from Yuma, Az to Los Angeles...
  43. 420A 2gNT Idle at 4k rpm

    I have a 2g eclipse 420a non turbo and i started my car after a rebuild and it automatically jumped to 4k rpm and sat there for about 15-20 seconds then shut off, i believe i have all of my vacuum lines connected besides the vacuum reservoir for the cruise control i was wondering if that is the...
  44. Clunking and shaking in reverse

    When i put the car in reverse. I can hear loud clunking and almost stalling until either the clutch is pressed all the way in or placed back in neutral.its slightly the same in first except it doesnt start shacking and clunking nearly as bad and actually able to pull off.how it started...
  45. Dsm724

    Hello from socal

    What's up guys and gals im not the sharpest when it comes to eclipses but have learned a lot about the 420a and some about the 4g63 im lucky enough to have a 96 gs and just recently picked up a 97 gst im good with the mechanical part of things just not so good with wiring diagrams im currently...
  46. Roxas5484

    420A Starter wiring

    Hey guys so I put a trans in my car. It’s a 1999 Mitsubishi Eclipse 420a 2.0 non-turbo. And I am having some issues when I wired the starter up I am almost positive I wired it backwards by accident. It got power the way I had it wired first but the battery would smoke and spark. Now that I...
  47. langelg6

    420A 420a bad cps sensor or ASD relay

    1995 Eagle Talon Esi 420a N/T manual transmissionWas driving in the city was accelerating when the car just shut off as if someone turned the key off.. mechanical whirring of fuel pump was no longer present. once I got the car home I ordered a wally as I plan to turbo in the future, dropped...
  48. Draxomulus

    2G New to the Community, 1st time DSM owner

    I picked up my 1998 Eclipse 2.0l (420a), 5 speed manual (NV-T350) a few years ago. It came home with me on a trailer and in numerous boxes of parts. I also found a 1997 a couple of months later that had been rear-ended and picked it up for nearly nothing to use as a parts car. Several trips to...
  49. iamnotwhoiam

    For Sale DC - CS2 Front Upper Strut Bar

    420a version of the DC - CS2 Front Upper Strut Bar. Has some wear spots, but is still in pretty good condition.70 + shipping OBOYou must be registered to see element. You must be registered to see element.
  50. 420A 420a Fuel Pump Issue

    I have a 1995 GS that I bought knowing it had a fuel related issue. I got to messing around with it and found that the fuel pump wasn't getting power for some reason. We ran a wire from the battery directly to the fuel pump and it ran and even drove for a moment. Also when we had the wire...
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