98 Eclipse GST something wrong

[Styxyr]

I have a 98 eclipse gst that I bought in January that had a bad starter, steering rack was shot, and the timing belt was a little lose, but the car ran fine otherwise. Took the entire cold air intake system out and lowered the engine to fix the timing, changed the steering rack and changed the starter. put it all back together and now it won't go past 4k RPMs. when it hits 4k it starts sputtering and tries to die, feels like the car lost all power. changed the plugs and wires and that helped a bit but still isn't right. the car had mods prior to me buying it and I can't get ahold of him for the list and being new to modding makes it harder, but it has upgraded fuel injectors, BOV, short throw shifter, stage 2 clutch off the top of my head....if anyone can think of something it would help alot.

can answer any question you ask about the car or put pics up.

I'm new to modding but I've been reading alot on this stuff, thanks

 

[Jason023]

Check for a boost leak or a leak in your vaccum lines.

p.s. make sure u have the timming right on sence fxed it, half a tooth can make a diffrance.

 

[Rsawd95dsm]

Do a boost leak test and get a tuning managment system wether it be a sacf ll or dsm link but i would find and put back in stock injectors if no engine management system is present

 

[Styxyr]

Is it possible to do a boost leak test with a compressor?

Was hoping it wasn't the timing. didn't wanna rip it back apart

Where can I get a tuning management? and there is a boost guage, oil pressure guage and fuel guage, I don't remember what the fuel used to run like but now when I first start it the car runs Stoich then drops to the bottom of lean

 

[1995 brian]

Is you maf connected? Check all your ic clamps as well and deffinatelly do a boost leak. Test

 

[Rsawd95dsm]

http://www.dsmtuners.com/forums/art...-boost-leak-test-how-boostpro-net-tester.html

ECMTuning, Inc. for the better one or go to any dsm store online or look around the classified and get a safc ll but link is way better around here

 

[Styxyr]

ok, so I went through both sites and I will order the tester tomorrow, but I'm a bit unclear as to the safc ll, is it a chip?


The MAF is connected but do I need to reset something if I unplugged it while running?

 

[truwarrior]

I have a 98 eclipse gst that I bought in January that had a bad starter, steering rack was shot, and the timing belt was a little lose, but the car ran fine otherwise. Took the entire cold air intake system out and lowered the engine to fix the timing, changed the steering rack and changed the starter. put it all back together and now it won't go past 4k RPMs. when it hits 4k it starts sputtering and tries to die, feels like the car lost all power. changed the plugs and wires and that helped a bit but still isn't right. the car had mods prior to me buying it and I can't get ahold of him for the list and being new to modding makes it harder, but it has upgraded fuel injectors, BOV, short throw shifter, stage 2 clutch off the top of my head....if anyone can think of something it would help alot.

can answer any question you ask about the car or put pics up.

I'm new to modding but I've been reading alot on this stuff, thanks

Can you rev it past 4K if you slowly give it gas? Or is it just under wide open throttle/boost? Does your speedometer work? I have DSMLink and my speedo doesn't work so until I disabled launch control, I don't go above 4K RPMs

 

[Styxyr]

Can you rev it past 4K if you slowly give it gas? Or is it just under wide open throttle/boost? Does your speedometer work? I have DSMLink and my speedo doesn't work so until I disabled launch control, I don't go above 4K RPMs

Yeah actually, there is a certain point of the throttle where it keeps revving, but if I give it anymore gas it tries killing over again and the speedometer works fine.

 

[truwarrior]

Yeah actually, there is a certain point of the throttle where it keeps revving, but if I give it anymore gas it tries killing over again and the speedometer works fine.

Did you forget to reconnect the MAF wire harness or the ground cable on the starter bolt?

Yeah actually, there is a certain point of the throttle where it keeps revving, but if I give it anymore gas it tries killing over again and the speedometer works fine.

Kinda sounds like a MAF sensor, I think I forgot to connect mine once and something like that happened.

 

[Styxyr]

Did you forget to reconnect the MAF wire harness or the ground cable on the starter bolt?



Kinda sounds like a MAF sensor, I think I forgot to connect mine once and something like that happened.

I don't think I forgot put the ground cable back but I will double check that, is it on the back side of the starter or on the side of the engine? there was one on each side and I believe one was the starter ground

Edit: Would there be something wrong with the sensor if you could unplug it while it's running and it tries to die? or would it run like that either way without a ground?

 

[sciondan]

Do you have a cel on? Try pulling codes?

 

[Styxyr]

Do you have a cel on? Try pulling codes?

Cel on? no Idea what that means, but no, I don't have anything to pull the codes yet

 

[slamminsammy]

CEL is short for Check Engine Light

 

[Styxyr]

That makes me feel dumb but no, it doesn't come on anymore. Was only on when I first got it and when I fixed everything it went off

 

[miguelmcv]

If you unplug the Maf, It will want to stall, If this happens, then your Maf is working good, If it doesn't do anything, then It might be bad.

But to me, it looks more like a bad calibrated Throttle Position Sensor, Check your throttle Position Sensor, make sure it is in good conditions and calibrated right.

 

[Styxyr]

Where is the Throttle Position Sensor and how would I know if it was bad?

 

[miguelmcv]

Forgot to mention, If you have bigger injectors, then you need a tuning device, If you don't want to spend much money, then it would be better to put back stock injectors and you will be OK.

 

[Styxyr]

I didn't get any of the stock parts from the guy I bought it from, there is a switch inside the car he said was for the fuel injectors though. never made much sense to me

 

[miguelmcv]

The throttle position sensor is located at the throttle body, Behind the #4 injector, (Throttle Body).
Here is a how to test the Throttle Position Sensor (TPS).
TPS Adjustment

Also, Fill up your profile, so we know what mods you have, that way we can figure out what's causing your problems.

 

[Styxyr]

Thanks, will check it tomorrow morning.

Any idea on the injector switch inside the car? he didn't really explain it to me.


Working on filling my profile up, just don't know the brands of anything he put in

 

[miguelmcv]

I have no Idea about the switch, have you mess with it?.
Mess with it, to see what it does, there is no such switch thing for the injectors.
Also discard the Link I posted before, It is for a 1g, Here is another link for a 2g.
http://www.dsmtuners.com/forums/newbie-forum/170432-how-adjust-2g-tps.html
If you don't know what mods brands you have, post pics, and we can tell you what brand they are.

 

[ktgurl87]

Does it idle good? If it runs like it has no power and it idles rough I'd say check your timing again. if not I'd be pointing to boost leaks or perhaps your tps wonked out on you. I'd lean more towards a boost leak though.

 

[Styxyr]

Does it idle good? If it runs like it has no power and it idles rough I'd say check your timing again. if not I'd be pointing to boost leaks or perhaps your tps wonked out on you. I'd lean more towards a boost leak though.

It idled rough until I changed the plugs and wires, now it idles perfect, gonna check the TPS sensor and see if that's it, and order the boost leak kit today

 

[Andranik]

hey bud also check your CAS when you lowered the engine to work on the car maybe the wires were pulled and something could of came loose also check to see if u getting spark in all cyls... could also be a fuel related problem