I have a 1989 camaro iroc and it does not want to stay running sometimes. One day it will run fine the next day it will just stall out I've tried everything i can think of to fix it. Can anyone help me out?

 

Well, you give very little info. What have you done to identify the problem?

How about a tune-up? Vacuum leak, low fuel pressure, bad MAF, bad dizzy, etc., etc......

 

i agree more details on what happens. also what's the history on the repairs done to it....

 

I have put a new ignition module, iac, maf, new cap, rotor button, wires, plugs, ignition coil, fuel filter and alot more that i cant think of right now. What it does is you can be going down the road doing 55-60 and it would just cut off. But now it wont even stay running it will start right up then cut off like 5 sec. later but you can fire it right back up. It wont show any codes I've had it on the scanner so many times and it will say no codes found.

 

I'll put 2 bits on a MAF relay being kaputs - or an ignition module, but I'd probably stick to the relays.

 

What about the fuel pump relay?

Intermitent problems are the hardest to identify. You put alot of new stuff on the engine and this happens, very fustrating. I know its tuff, but keep after it.

 

Check your fuel pressure, it's possible that your fuel pump is weak and cannot maintain the higher pressures needed in the mid to upper rpm range. You may even need to drive the car with the guage taped to the windshield so you can monitor it.

I would also replace the fuel pump relay, and oil pressure switch.

 

I did replace the relay and checked the pressure when it was at an idle but not moving i'm going to try that this week, thanks

 

 

Fuel pump died on mine last winter, it was a no go. Also, what the hell is a 'dizzy', second time I heard that term... I'm in the dark, sorry to say
Bill

 

Distributor.

 

ahhhh thanks. Still not a term I'd adopt

 

Can you give us some more information from your scanner like whats your MAF, integrator, block learn, O2 volts, crosscounts, injector pulse width?

 

Where is the MAF relay at? Is it the one by the battery?

 

no, thats a fan relay. the MAF relay is on the firewall on the drivers side.

 

Ok i know where it is now,
thanks man

 

There are two of them.

Vader's car and pic:

 

You have to be kidding me... I replaced what I thought was the MAF Power relay (it said bosch on it, so does the MAF, my thought process) but what I really replaced was the driving lamp relay. DOH!!!! I'm going to the parts store now and getting that relay!

Thanks for posting that pic.

 

Sounds like what my fuel pump did before it took a dump on me.

 

thanks for the pic that helps me out alot. Otherwise i was going to take them off one by one and check them.

 

Thank Vader for the Pic. I always find it with Search because he posts it up a whole lot. And his bay is cleaner than mine.

 

Being a novice, I may need to check my fan relay, got a pic and some tips? I've only bothered with the dash fuses/CBs