troinfo

Hello All,

I have a stock 89 IROC-Z Camaro with a 305 TPI engine.

For the most part it runs ok and starts fine when it is cold.

If the car warms up and then I shut it done it doesn't start again.

It just turns over and will continue to do so till the battery dies.

I found a post on-line referencing the same issue and they unplugged and plug back in the relay and their car started fine.

They replaced the relay and all was good.

This is the fuel injector relay in the engine compartment on the drivers side.

So I tried this. When I unplug/plug in the fuel injector relay the car will start right up. Hooray.

So I replaced this relay and it still does not start when warm.

At least I have work around for when I get stuck at the store .

Other things I have done:

1. replaced spark plugs
2. replaced spark plug cables
3. replaced cap and rotor
4. replaced MAF
5. tested for spark
6. tested that there was fuel getting to injectors
7. had timing checked
8. reset the ECM
9. replaced the ECM

Nothing made a difference.

Any suggestions on my next steps?

Thanks for any help,
TT

southbay08

check the ohms on the injectors when they are cold and warm. When the stock multecs have coil issues, they have a tendency to fail when they are warm

rusty vango

your ignition control module is probably going away . it can be tested .

troinfo

Thank you for the reply.
How would you test the module?
Thanks,
TT

troinfo

Thanks for the reply.
I thought about the injectors but I couldn't understand why would disconnecting the relay work if the injectors are still hot from running.
Thanks,
TT

rusty vango

you need a DVOM to check the injectors . the ICM can be removed and most auto parts stores can test it for you . but make them test it several times in succession , because they usually fail when hot

troinfo

Thank you for the reply.
I'll look into this asap.
Thanks,
TT

troinfo

So it turns out I need 3 fuel injectors, per my mechanic.
When the car warms up these 3 injector fail preventing the car from starting.
Pulling the relay resets them so the car can start again.
Any suggestions on which injectors I should get?
I am gonna need to work with my friend to replace them (all) as it will cost to much to pay someone to do it.

Thanks again.
TT

troinfo

I guess this is what I'm looking for?

http://www.southbayfuelinjectors.com...l-injectors-8/

southbay08

yes, they are the direct replacement 19lb bosch lll injectors.

troinfo

So I just picked up my injectors from South Bay as live near by.
Great people there and very impressive shop.
Thank you very much South Bay

southbay08

Any time! It was a pleasure meeting you

rusty vango

i have a set of bosch3s from south bay . so far , everything is as it should be