1998 Eclipse GST Problems
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Re: 1998 Eclipse GST Problems
Ok, yeah vfaq is good stuff.
Cat CEL can be ignored.
BISS adjustment is a quirky thing. It's easy to do "quickly" but tedious to do correctly. Having said that, I've done the "quick" adjustment...screw it in all the way then back it out 4 turns or whatever a few times on my car.....but I just set the idle at the ECU anyway.
Fuel pump is probably fine. I was stressing fuel pressure because you said you replaced the fuel rail. A loss in fuel pressure can cause it (especially the difference in the car being warm/cold due to lines shrinking/expanding) but you'd likely be seeing other symptoms if there was a problem with the fuel pump.
Ok, seems like most of the basics are covered.
Can you describe more how the car dies if you're driving it (not at a stop)?
ex. You're driving around at 2500 rpms and you push the clutch in aaaannnndddd, what happens? Does the car stutter at all or just completely shuts off? Does it try to catch itself around 500ish rpms but fails? Can you give it gas while this is happening to prevent it?
Are you able to WOT the car to redline under boost without issues?
Another good idea would be to datalog the car when this happens. That should narrow it down a bit.
I'll throw this out there, although since you're in VB it's probably too far. I live in NN, if you're interested in bringing the car to my house on a weekend I can datalog it and we can swap IACs, etc. (mine has a crazy idle issue too, lol dsms)
http://www.dsmtuners.com/forums/tuni...fect-idle.html
Cat CEL can be ignored.
BISS adjustment is a quirky thing. It's easy to do "quickly" but tedious to do correctly. Having said that, I've done the "quick" adjustment...screw it in all the way then back it out 4 turns or whatever a few times on my car.....but I just set the idle at the ECU anyway.
Fuel pump is probably fine. I was stressing fuel pressure because you said you replaced the fuel rail. A loss in fuel pressure can cause it (especially the difference in the car being warm/cold due to lines shrinking/expanding) but you'd likely be seeing other symptoms if there was a problem with the fuel pump.
Ok, seems like most of the basics are covered.
Can you describe more how the car dies if you're driving it (not at a stop)?
ex. You're driving around at 2500 rpms and you push the clutch in aaaannnndddd, what happens? Does the car stutter at all or just completely shuts off? Does it try to catch itself around 500ish rpms but fails? Can you give it gas while this is happening to prevent it?
Are you able to WOT the car to redline under boost without issues?
Another good idea would be to datalog the car when this happens. That should narrow it down a bit.
I'll throw this out there, although since you're in VB it's probably too far. I live in NN, if you're interested in bringing the car to my house on a weekend I can datalog it and we can swap IACs, etc. (mine has a crazy idle issue too, lol dsms)
http://www.dsmtuners.com/forums/tuni...fect-idle.html
Ill make a video of cold driving and when its warm.
This screams boost leak to me.
Check your recirc hose for cracks/leaks as well? BOV gasket between the BOV and the IC piping?
When I had my 99 GSX the Greddy RS gasket between the BOV and IC piping wouldn't make a good seal to the IC piping without using a lil RTV. so that is a potential location for leaks.
I didn't think I had any boost leaks once, after testing I had 7. Fixed (or so I thought) and tested again, still had 3.
Fix up a spray bottle of water and dish soap, spray around couplers to help identify leaks. Really helps if you have a buddy help out.
You should make your own boost leak tester when owning one of these cars. Quick trip to Home Depot and about $20 and you will have your own.
Good luck, hope you find your issue. Damn I miss my GSX
Check your recirc hose for cracks/leaks as well? BOV gasket between the BOV and the IC piping?
When I had my 99 GSX the Greddy RS gasket between the BOV and IC piping wouldn't make a good seal to the IC piping without using a lil RTV. so that is a potential location for leaks.
I didn't think I had any boost leaks once, after testing I had 7. Fixed (or so I thought) and tested again, still had 3.
Fix up a spray bottle of water and dish soap, spray around couplers to help identify leaks. Really helps if you have a buddy help out.
You should make your own boost leak tester when owning one of these cars. Quick trip to Home Depot and about $20 and you will have your own.
Good luck, hope you find your issue. Damn I miss my GSX
Last edited by carforsale; Jun 6, 2013 at 02:45 PM.
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Re: 1998 Eclipse GST Problems
Doing the boost leak test Saturday. Also i was driving the car around the block and noticed that it will not go past 3000-3500 rpm when i step on the gas, could that be a sign of a good boost leak?
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Re: 1998 Eclipse GST Problems
It does jerk. It's like it just stops at 3k rpms and sounds like it would if you red line and hold it there or if there is 2 step and hold it at the limit, it bounces but sounds like there is not much power. My car doesn't has 2step just trying to give u an idea.
Also it sounds like there is a dead cylinder, so I am checking the wires, coils and power transistor.
Also it sounds like there is a dead cylinder, so I am checking the wires, coils and power transistor.
Last edited by carforsale; Jun 15, 2013 at 09:35 AM.
HAM
Joined: Nov 2002
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From: Penninsula
Re: 1998 Eclipse GST Problems
Well jerking, caused from lack of fuel and a 2-step like condition where you have "more fuel" are opposite ends of the spectrum.
Do you have a boost gauge? (assuming yes...) What is your VAC at idle when it's warm/cold?
Don't forget to check the condition of the plugs (unburnt fuel) while you're at it.
aight pc
Do you have a boost gauge? (assuming yes...) What is your VAC at idle when it's warm/cold?
Don't forget to check the condition of the plugs (unburnt fuel) while you're at it.
aight pc
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Re: 1998 Eclipse GST Problems
Well turns out I have a bad power transistor and a coil. So I am replacing them. I also did boost leak test and the intercooler has a hole in it so I am getting a new intercooler. That was the only leak.
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