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420a

  1. Breach7Performance

    DSM Builder in the Southwest (420A & 4G63)

    I'd also like to let everyone in the Southwest DSM community know that I build 1G and 2G DSMs. I've built quite a few 420As and a couple of 4G63s. I offer complete engine builds, transmission, and turbo setups. I don't do general repair work—only full builds.If you're looking for someone to...
  2. DSM-kiezerz

    420A Dowel pins block to head

    Anybody know where I can get a set of 420A head dowel pins P/N 4448856 I just rebuilt my head and found out one of my dowel pins was broken Now I’m stuck trying to find a replacement I tried looking everywhere autozone, advanced auto parts and O’Reillys and even the Chrysler dealership they...
  3. DSM-kiezerz

    WTB IL, IN, WI NEED 420a engine

    Hello everybody I making this post to see if anyone has a 420a engine for sale around Illinois preferably by the Chicagoland area or Indiana or Wisconsin. Thanks
  4. TheLunarEc1ipse

    420A 2g GS sputtering issue 2k-4k rpms

    Hey Y'all! I have been having this really odd sputtering issue for quite a while now, and have tried a few things to try and fix it with no luck.The car has a really weird sputter in between 2k-4k rpms, higher or lower it goes away. On top of that the car seems to completely shut off while...

  5. 420A Help with my 1998 Eclipse 420a

    So I recently bought a 1998 Eclipse 420a non turbo automatic in decent condition clean title. It has 280k miles since the previous owner would drive it from LA to San Francisco but he rebuild the engine and transmission and I have the paper work for eveything.He installed a stage 1 Brian...
  6. swassoni

    420A '95 420a running/ idle issue

    Hopefully the video attached right but my 95 Eclipse RS is finally to the running stage but it isn't running right.Video pretty much sums it up, it'll start right up but can't hold an idle until it's warm then still runs rough. I didn't use any gas pedal in the video, but I can rev it up...
  7. DrewmHolland

    WTB I NEED A 420A 5spd TRANSMISSION

    I’m looking for a non turbo manual transmission (1999 eclipse gs) in the Nashville / middle Tennessee area if you’ve got one I’ve got $500 lmk
  8. ovan4433

    420A AFPR vs FMU with 24lb injectors

    I plan on running 7lbs of boost out of a t3/t4 turbo on a 1997 420a. (RS 2G Eclipse) I have the Walbro 255LPH installed without extra voltage mods, along with Bosch 24lb fuel injectors. The kit I bought which I'll link at the bottom, has an adjustable fuel regulator (1-15 psi) to max 140. Will I...
  9. 95-99 eclipse rs/gs shell
    Closed

    Wanted 2g 95-99 eclipse rs/gs shell

    I'm seeing what's out there. I've never actually had an eclipse that was clean or damage free. If anyone has a clean 2g eclipse rs or gs shell let me know. I have so many parts overflowing and I'd like to get into more 420a eclipses. They must be clean and damage free. If your somewhat close ish...
  10. CrackedDSM's boring new project(420a)

    Street Build CrackedDSM's boring new project(420a)

    • CrackedDSM
    • Vehicle profile
    • 420a boring daily driver lame n/a non-turbo not fast
    • Category: 2G DSM
  11. 420A NA Polished Intake & Exhaust Cams
    Sold

    For sale 420A NA Polished Intake & Exhaust Cams

    I’ve just finished polishing these camshafts for a 420A engine. They come with OEM cam gears. The lift and duration of the camshafts remain OEM specifications, but the cams themselves have been polished. The set costs $80, and shipping is $50. I accept cashapp, paypal, or venmo. (915) 258-7080
    $80.00
  12. 420A NA Valve Cover
    Sold

    For sale 420A NA Valve Cover

    Nice OEM 420A NA valve cover, powder-coated by SandCity Powdercoat & Design in El Paso, TX. The valve cover costs $100, and shipping is $50. I accept cashapp, paypal, or venmo. (915) 258-7080.
    $100.00

  13. 420A 420A Engine Telling Knock Knock Jokes

    Just got back from getting towed 30min from my house. I think I might be pretty screwed.I was driving on the highway. It was pretty nice, music playing, window cracked. I was going to go the canyons to take pictures and have lunch. It was a really nice day today. This, and I needed to drive it...

  14. 420A Accessory Belt Issue

    Belt slipping off pulley, smells like burning, excessive wear on belt edges. --- Replaced idler pulley, power steering pump, acc. belt. Spent time fidgeting around with the tensioner. Can't seem to get the belt to stay on the AC Compressor pulley. Belt tries to come off left edge of AC...

  15. 420A Special Tool? -- OPSS Clip

    Low oil light flickering, on when driving, flickering when going over bumps, off when on incline. --- Just recently got my 97 Eclipse RS. and I have a low oil pressure light. I bought the OPSS from my parts store and put it on jacks. I found the switch way in the back right above the rack and...
  16. 420a engine
    Sold

    For sale 420A 420a engine

    I have a mostly complete 420a engine assembly. Located off NJ Parkway Exit 83It includes consider it a long block with some brackets, coil pack, flywheel, fuel rail, injectors, sensors, and intake manifold installed.It was sold to me as a 4g63.It was delivered to my driveway while I was...
    $200.00
  17. 2gev

    420A Yonaka vs eBay exhaust 420a

    You must be registered to see element. Attached is a vid I made explaining and testing the difference of sound between a cheap eBay cat back and a Yonaka system I scored for less than 200 bucks, enjoy.You must be registered to see element.

  18. 420A Help with 2G 1999 Eclipse RS (420a) p0304, p0303, p0302 codes rough idle

    Hello I have a stock 1999 Mitsubishi Eclipse RS with the 420a engine. It currently has 195,500 miles. I’m currently dealing with a rough idle and check engine lights p0304, p0303, and p0302. None have came on at the same exact same time since I’ll try and fix something and I reset the codes but...
  19. mrbmw

    2G 2GNT Wiring Harness?

    Anyone know who still makes or can make a wiring harness for a 1997 Mitsubishi Eclipse GS 420A Standard Transmission?
    • mrbmw
    • Thread
    • 420a eclipse eclipse 2g wiring wiring harness
    • Replies: 6
    • Forum: Electrical Tech
  20. 1998 Eclipse GS

    1998 Eclipse GS

  21. 420A Piston kit

    Need to rebuild my engine and want to get block machined. With that I’ve been looking into what pistons I can get for the 420A and I’m only finding generic ones. Which pistons are recommended to push the car a bit more but still in the “reliable” side?

  22. 420A Engine removal from 99 RS

    I recently bought a 99 rs for my first car(420a fwd) and have been working on pulling the old engine,I have a new to me one I’m gonna drop in but I just wanted to know if I HAVE to remove the transmission when I pull it? I’d prefer not to but ngl I’m kinda learning as I go.
  23. swassoni

    420A Need an ECU :(

    Hello I have a 95 Eclipse with an unrepairable ECU. I've looked all over the country on marketplace for parts cars, junkyards, and of course eBay and google. I just can't seem to find my specific ECU. Looking for help finding one, or if anyone has a parts car. Thanks! anything helps1995...

  24. Resolved 2GNT AC issue (blower motor and AC light turn off simultaneously and blow fuse)

    Hey guys, recently my cars AC has been acting funny. I was driving and all the sudden my blower motor stopped blowing air and the AC light turned off. This happened simultaneously. I checked my fuses and I blew the 10A “heater relay” fuse on the inside of the vehicle. I replaced the fuse and my...
  25. DrewmHolland

    420A OEM airbox with a turbo?

    I have a 420a with an eBay turbo and I’ve been running a cone style filter just sticking out from my turbo and into the hot engine bay, I know it’s not ideal and since I’m running the factory ecu it’s really not been liking the high intake temperatures (I can feel it pulling timing out on hot...
  26. ErickDelgado

    420A CV axle gap?

    So I just got my clutch replaced and im having a small leak on my transaxle output and im wondering it its normal to have this gap or if the axle needs to be pushed in more, if so what's the best way to do itYou must be registered to see element.You must be registered to see element.
  27. Mc0ck1ner

    420A Best aftermarket ECU for 420a Talon

    Ive got a 1995 Eagle Talon, its a 420a, automatic transmission. previous owner had already replaced the stock ecu with a refurbished ecu. cant find any wreckers in canada with one. im fairly new to this kind of stuff. what would be the best option for an aftermarket ecu? im not going to be using...

  28. 420A Thrust bearing issue?

    My 95 420a manual is making a godawful noise on start up and when pressing the clutch, the sound is coming from the flex plate/clutch area. I’ve already replaced the clutch, tob and the fork with no change in sound, I dropped the pan and I can pry the crank towards the timing side just enough to...
  29. onlytsuki

    420A Recommended Spark Plugs?

    Hello, So I guess my plugs fouled and are throwing a P0300 code. Initially I was using Bosch Iridium Plugs but I guess that ain't the move. What plugs should I run on my 420A non-turbo? If also possible, part numbers?Also I did see from the owners manual that it recommends I run with Champions...

  30. 420A 98 ESI stuck in 1st

    I am looking to purchase my first DSM. It is a 98 Talon ESI. It currently has 90k miles on it. The guy that is selling it says it won't shift out of first gear (4spd auto). The majority of the threads I am seeing here say that the TCM is the cause. Which is fine by me, I can find another one...
  31. 99 eclipse oz rally ( Little Red)

    Street Build 99 eclipse oz rally ( Little Red)

  32. 420A Oil leak coming for behind the motor under intake manifold

    I have a this really bad oil leak coming from behind the motor if anyone can please tell me what it isYou must be registered to see element.You must be registered to see element.
  33. Humble beginnings

    Street Build Humble beginnings

  34. onlytsuki

    420A Exhaust Wrap or Ceramic Coating

    Hello,I wanted to get some opinions on what route I should go in terms of headers. I run a 420a and I planned on getting some stainless steel eBay headers (Only thing available on market). Should I go exhaust wrap or ceramic coating?
  35. onlytsuki

    420A Header choices for 420a Eclipse in 2025?

    Hello everyone,I had made a post back around the beginning of May with a misfire issue I had. Turns out my exhaust manifold is leaking before the O2 sensor causing it to throw off the reading. Additionally, the hissing/soft whistling type of noise got worse when the car was at normal operating...
  36. Sapphire

    Street Build Sapphire

  37. onlytsuki

    420A Misfire Issue

    Hello everyone,I have a 1997 Mitsubishi Eclipse RS Auto with 97,000 miles and primarily all stock except the CAI and I've been struggling with a misfiring issue. On cold starts it would rev to 1000-1100 RPMS and fluctuate between 800-900. At times it would get as low as 700 RPMS when at a...
  38. 2gev

    420A 420a smoking on down shift (2nd motor)

    As the title suggests I’m having an issue where my 420a smokes and reeks of oil on downshift, out of the exhaust.It all started last year April (2024), where I encountered an issue where on 4-3 3-2 downshift or general decel smoke was coming out of my exhaust and reeked of oil. This year I...

  39. 420A 1999 Eclipse GS 420a shuts off

    So I own a 1999 Eclipse GS, recently its been turning off, it wasn't the fuel pump, ignition system. I checked the fuses and nothing so I thought it was the fuel filter cus I haven't changed that in a awhile.So I put a new one and everything was running smoothly for like 2 weeks then out of...
  40. Rdawgflex

    420A 420a engine has white steam pouring out from behind cylinder head after timing belt job?? 137k miles on motor

    EDIT:Now the motor starts and runs right but the rear of the cylinder head has white steam/smoke pouring out from it. How TF did my head gasket blow or did I crack the cylinder head I wonder? Ill get under the car and look behind the motor and upwards to see if there's discoloration at where...
  41. swassoni

    420A 95 Eclipse RS Electrical Help NEEDED!!

    Hello I'm gonna try to do my best explaining this.So I bought a 1995 Eclipse RS 420a off a guy who had rebuilt the whole thing after it sitting for about a decade or two. Whole car checks out, compression, wiring, fuel pressure, timing, spark plugs. But there's 1 engine code for P0118 Coolant...
  42. Project Lazarus

    Project Lazarus

  43. midfb6

    420A 12:1 FMU + FPR worth it

    I'm turboing my 99' GS.I've been collecting parts and I'm down to my final stages and my fuel system I'll be running a 255 fuel pump stock injector and a FPR. I've been reading about the 12:1 FMU and was wondering if its worth doing since most threads I see about this are years ago I can find...
  44. Evannewell19

    420A 1998 Eclipse RS 420a mods

    I'm wondering what would be some good mods for my 98 2g Eclipse GS. I already have my wheels and tires picked out, they're Audhan ds07 18x8.5 35 with Falken Azenis rt615k (tires) What coil overs should I use Headers? Exhausts? Carbon fiber? (Interior or exterior) What about a starlight...

  45. 420A No start, I don’t have a similar problem than other people

    Hello! I have been building my Eclipse for the past 8 months. I pulled my head and sent it in because of hearing valves knock, and received it back not too long ago. I did timing and it came out great, I’ve also connected every connector from the harness that was free and have plugged the 3...

  46. 420A Need new transmission for 99 Mitsubishi Eclipse OZ Rally edition

    Which evo tranny can I put in my Eclipse, it’s making some odd noises so I think it may be going out? I’m only 16 but I want this Eclipse to stay with me forever so I'm willing to do whatever for it. Please lead me in the right direction
  47. Serrano Red Eclipse N/A build

    Serrano Red Eclipse N/A build

    • jspec240sx
    • Vehicle profile
    • 420a drag dream car itb n/a build nitrous street
    • Category: 2G DSM
  48. Eclip97gs

    Resolved 420A K&N oil filter #

    Hey, I'm seeing the K&N oil filter for the 420a N/A should be the hp-2004, orileys says this is the number I need.Now when I'm ordering it on Amazon it's saying it won't fit, but the black SO-2004 does say it fits but is showing 3/4in threads vs the hp-2004 which says it has 1in threads.To...
    • Eclip97gs
    • Thread
    • 1997 2.0ltr 420a eclipse gs hp-2004 k&n n/a oil change oil filter so-2004
    • Replies: 7
    • Forum: 420A Bolt-on Tech
  49. artemGS99

    420A 99 Eclipse 420a engine build

    Hey guys recently bought a 99 Eclipse and got the engine out and gonna get new gaskets etc. I’m looking to build it to around 300hp many people have said that these engines are slow and hard to push power and a money pit. I’m just wondering the best way to push for around that power. Was...
  50. Ollie_DSM - 99 GS AE

    Street Build Ollie_DSM - 99 GS AE

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