Car wont start PLEASE HELP

[NMFDChris1G]

Yesterday I went to my firehouse cause I have training in the morning an i got there everything ran fine, shut the car off not knowing I left my parking lights on an probably at 8hrs later i got back an notcied an knew my battery was dead so i tryed a jump start...... ok cranks but doesnt fire up ok tryed a couple mins later same thing ok.... got a new battery same thing... noticed my S-AFC wasnt coming on when i started my car, looked at my Logger same thing it wouldnt read a damn thing..... pulled the spark plug wire out an see if it would spark when i started... nope! no spark, afc wont turn on jus cause the car died????? can anyone help me????? the grounds on the battery are good the battery has a 12.8V when the car is off so im ####in annoyed an stumped someone help or if ## in central new jersey around middlesex county maybe u could swing by or something idk

 

[NMFDChris1G]

anyone????????? please help me

 

[Old Mitsu Tech]

I would check your fuses first. The SAFC not coming on would be a tip off for me.

Just because you drove it there or any other car including brand new ones does not mean it will start to get you home.

Get a voltmeter and check to see if you have 12 volts on your injectors with the key on. If you do, take a test light and hook to your positive post and with the probe on the other wire. That's the one that does not have 12 volts on it. Crank and see if the light flickers. If it does that means your injectors are working. If it doesn't and you don't have spark, then the problem lies elsewhere. Spark and no flash could mean bad injector drive circuit in the PCM. Which is very common on the ones up to 95 when they went to 2g.

Good Luck

 

[femmeDSM]

How much voltage is the battery showing while cranking? Like Rick said, I'd check fuses, definitely.

With cars that aren't seeing spark, I will always check the coilpack and the ECU right away, as well.
Here's a link for testing the coilpack: http://dsmtuners.com/forums/showthread.php?t=217615&highlight=90+coilpack
I assume you know how to pull the ECU and what to check for (leaking caps, damaged board, etc). If not, a search would turn up plenty of posts illustrating the process.

Do you have any kind of wiring diagram or FSM for the car? I'd verify that everything that is supposed to be seeing battery voltage is indeed seeing 12.x volts. That could take a while, but if all else fails, it's what you'll probably end up needing to do.


Edit: One more link for you....This demonstrates how to test a few other components that control spark...Might come in handy as you move along the Troubleshooting path .

http://dsmtuners.com/forums/showthread.php?t=218125

 

[NMFDChris1G]

im not sure what it is but when i went back to my car an turned it to the on position my CEL doesnt come on at all an my boost gauge doesnt go up to 0PSi like its supposed too i think i fryed my ECU im not sure??????????

 

[laserwitpsi]

The capacitors on the ecu tend to leak so take off the cover and look at what kind of shape they are in. I was driving my car fine one night and the next day it was running really bad because my ecu started to go out.

 

[femmeDSM]

im not sure what it is but when i went back to my car an turned it to the on position my CEL doesnt come on at all an my boost gauge doesnt go up to 0PSi like its supposed too i think i fryed my ECU im not sure??????????

Yep, it looks that way.
Pull it out and have a look. Then PM member "Steve". He can fix it for you unless it's completely fried

 

[steve]

Unless your sure that the fuses are good all you've noted so far is that the ECU doesn't power up and that's a pretty good reason for the car not to start.

Steve

 

[NMFDChris1G]

well it was my ecu got a new 1 it runs fine but of course once u put something in the car something else has to #### up so now my wastegate is stuck open or something of that sort cause i know now boost control it will go up all the way to 22psi without anything stopping it an theres an annoying rattle in the exhaust port of the turbo any ideas???

 

[steve]

If the wastegate was stuck open you wouldn't be building any boost.
Look for reasons why the wastegate might not be opening.

Steve