The Central Hub for DSM Community and Information

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.

2G 2g GSX not running nor starting

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

kiLla187

Probationary Member
26
0
Sep 17, 2012
layafette, Colorado
I have a 2g Eclipse GSX with only 94,000 miles on it and 1,500 miles on a newly rebuilt motor. It has a 16g turbo. ECU was also tuned when running. I was driving one day and then my RPMs started to jump around and then shortly stalled out on me?

I went threw the basics checked spark, fuel pressure, any grounding issues, also replaced the fuel pump, scanned car for any codes, it threw a cam sensor code, replaced the sensor, and rescanned it no more codes. Car will still not start.

So I also checked the ECU for any burning, smells and leaking capacitors, nothing all looks good.

I also have a 2g 420a model that did the same thing, and did all the same stuff I did with the 2g GSX. I found out that its ECU had water damage to it being that it was located underneath the hood. That's when I than replaced the ECU in the RS and it started right up with no problem.

HELP I am running out of ideas? Is their any way I can get my ECU tested? I'd really hate to buy more stuff i dont need thanks.
 
Last edited by a moderator:
A failed crank sensor could cause your issue. Check for crankshaft end play and see if a walking crank took out the sensor.
 
I don't think that would be a problem being that I had extra oil ports amongs other things done to prevent crank walk from happening from jacks transmissions witch is a specialist on the DSMs . Would crank walk pervent my car from starting ? it does turn over

Thanks TDS i will look in to that . Anything else would help as well Thanks
 
So does the car have both spark and fuel? Is there compression in the cylinders timing belt could have jumped
 
Ya I totally forgot to say that I did check the timing belt as well oops . Timing is good an also checked spark I am getting spark as well as fuel ? Hummm I am stumped as all hell.that is why Iam thinking its the computer . Is their any way I can get the ecu tested if I take it out of the car ? thanks sykko anything else will help thanks
 
Would that cause my cars RPMs to jump around an than stall shortly after like it had ran out of gas ? An than not even start after words ? Thanks RS I'll look in to it

Wouldn't the OBDII scanner pick that up because it picked up the cam positioning sensor I did replace that an still nothing ?
 
All is good. It was running before this all happened. I don't think it would it's that but it is all good.

I was on the highway boosting about, maybe 8-10 psi then my car bogged down and it was staring to chug ever time I gave it gas it was also really hard to boost, RPMs were bouncing around I was pretty much just coasting at this time. I got to about maybe 5mph than kinda chugged than stalled.

I did try to start it it did start but same thing with the RPMs , an the chugging then I gave it a lil gas than it dies, since than the car will not start ? I am trying to be as detailed as I can. thanks its really helping
 
Last edited by a moderator:
I had the same exact problem with my 97 gst, when i got crank walk ripped my crank sensor to shreds and it would not fire up replaced it and car fired up without a hitch :D, thats after i replaced the thrust bearing. check your crank sensor on your gsx before you replace any thing else
 
well like i said the car was rebuilt by jacks transmission an their a dsm specialest they put extra oil ports along with other thing that they did to pervent crank walk from happening they garantee 100% for crank walk from ever happening . on anthor note the CAS is clocked right , ive checked the timing belt . is their any way i can get my ecu tested? ### i also have a 97 rs eclipse as well an the same was happening with that as well an i did do al the same things to that including the fuel pump hahaha than i found out it was the ecu because it had water damage sence it being under the hood of the car . so i think the same is happening with my gsx . also when i turn my key to the on possition with out starting my car (gsx) i do not hear the fuel pump at all ? it is a brand new fuel pump. my rs also did the same thing than i replaced the ecu than i hear my pump kick on when key is on the on possition went to fire up an it started with no problem .

any thing else would b great thanks DYNO
 
Last edited:
Your rs and your gsx are totally different, not because you did something to the rs means that it will work on the gsx, (forget about that).

Now, you said it doesn't turn over?, at all?.

If it doesn't turn over, put it on neutral and turn the engine with hand to make sure is not locked, if it does turn over by hand, then apply current directly to the starter to see if the starter is working.

Check that and report back the results.

On a side, Do your best with your spelling, and read your post before you reply to check better for spelling.
 
Well starter is working Iam going to check the ecu again but car does still turn over just won't start ? Thanks
 
My buddys RS would turn over but would NOT start after a replaced fuel pump. All i did was purge the system and it started right up, little purge valve on the fuel rail. But I just checked my gst fuel rail and didnt see a purge valve
 
Your rs eclipse and gsx are def two different cars, on your gsx check your fuel pump relay inside dash where your radio is just under it, there is two of them i belive its the one on the rigtht thats the fuel pump relay when key on make sure it clicks if not check fuse. do you wtill have the 7 bolt engine or is it some thing else, when you said you had the cas clocked right i kind of assumed it was 6 bolt swap correct me if im wrong here :banghead:
 
Are you sure it's getting fuel take off the air filter and spray some starting fluid in it to see if it will run for a second. Do you hear the fuel pump kick on at all one time I got a fuel pump at autozone and it was bad from the start.
 
Ok I will check the fuse relay under the dash For the fuel . It is the 2g but Iam pretty sure it's the 7 bolt . I know it's getting fuel but how much ? Don't know ? I will check the relay n get back to you guys thanks if u thinking anything else please let me know thanks a bunch

So if the relay is clicking its good ?
 
Than I got pleanty of good fuel pressure . Also if my ECU is bad can it cause my fuel pump relay not to click like it should ?

Thanks for all the input . Iam going to keep on working on this so any more input would help thanks
 
It's probably not the ecu that would be the very last thing to check. Just try and start the car by using some starting fluid have someone spray it while you turn the car over. I don't mean your relay can you even hear the pump kick on when you turn the key two clicks you should hear a buzz under the rear seat.
 
Your rs eclipse and gsx are def two different cars, on your gsx check your fuel pump relay inside dash where your radio is just under it, there is two of them i belive its the one on the rigtht thats the fuel pump relay when key on make sure it clicks if not check fuse. do you wtill have the 7 bolt engine or is it some thing else, when you said you had the cas clocked right i kind of assumed it was 6 bolt swap correct me if im wrong here :banghead:

95 and 96 dont have a CAS on the passenger side head, that is the big and bulky that you can see. Every other year (90-94, 97-99) has an external CAS. Stock motors that is.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Latest posts

Build Thread Updates

Latest Classifieds

  • For sale Misc Left Over Parts
    Hello, I have a few left over parts for sale, these do not include shipping, please pm me for a...
    • r3dmak
    • Updated:
    • Expires
  • For sale Alpha Injection Clinic 2200cc for 4G63 DSM/EVO
    I have a set of Alpha Injection Clinic 2200cc high z injectors for DSM/EVO. I am stepping up to...
    • spoolinpos
    • Updated:
    • Expires
  • Wanted WTB 2g half rad
    ISO of a 2g koyo half rad or something equivalent.
    • Michael Wucher
    • Updated:
    • Expires
  • For sale Coilover Springs
    Used pair of Eibach coilover springs from an old set of Ground Control coilovers. 2.5" inner...
    • RamenPride
    • Updated:
    • Expires
  • For sale 4G63 Mitsubishi logo early valve cover
    Early Mitsubishi logo valvecover. “1990” All threaded holes are good. Has the 90 style vent...
    • Galant665
    • Updated:
Back
Top