my 1989 won't start
Thread Starter
Intermediate
Joined: Dec 2004
Posts: 38
Likes: 0
my 1989 won't start
My '89 has been running great for a while. I drove it today, parked it, when I got back in the car it started right up. When I put it in reverse the car just killed. Now it won't start at all. The motor turns over but nothing else happens; not even a sputter. Any ideas? Thanks in advance
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
My '89 has been running great for a while. I drove it today, parked it, when I got back in the car it started right up. When I put it in reverse the car just killed. Now it won't start at all. The motor turns over but nothing else happens; not even a sputter. Any ideas? Thanks in advance
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Go home and get your timing light, fuel pressure gauge, and a noid light. While cranking check for spark and timing. Next, put the fuel pressure gauge on the shrader valve on the end of the right fuel rail and see if you have 35-42 psi and see if it holds up with the ignition off. Unplug an injector and connect the noid light and see if it pulses during cranking. Engines need spark, fuel, and air to start and run. You are missing one or more.
Corvette Enthusiast
Joined: Oct 2007
Posts: 6,797
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From: So. Cal.
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jfb
I used to know what a noid light is. Now I have forgotten. ?
Thanks,
Corvette Mike
Thanks,
Corvette Mike
Instructor
Joined: Mar 2009
Posts: 126
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From: Newington CT
They work great.
http://buy1.snapon.com/catalog/tools...e=snapon-store
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noid
Im still confused. How and what do you do with it? Sorry for stupid question. Once you tell me it will come back. I recall a few years ago thinking about getting one.
Instructor
Joined: Mar 2009
Posts: 126
Likes: 1
From: Newington CT
Just unplug injector of your choice, insert proper noid light, crank car over.
If the light flashes the computer is telling the injector to fire and that driver circuit is working correctly.
If it doesn't...well you got problems.
Best to check the basics, I say check for spark and fuel pressure first.
Instructor
Joined: Mar 2009
Posts: 126
Likes: 1
From: Newington CT
One more note.
DO NOT use a test light to try checking for injector pulse.
The injector driver circuit from the ECM will almost certainly get fried.
The noid lights have the proper resistance built in so this doesn't happen.
Good luck.
DO NOT use a test light to try checking for injector pulse.
The injector driver circuit from the ECM will almost certainly get fried.
The noid lights have the proper resistance built in so this doesn't happen.
Good luck.
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noid
Ah yes, its all comming back. Back when I was having injector issues in 2005.
Thank you.
Thank you.
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From: Newington CT
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