Problem re-starting a 89
Thread Starter
Pro
Joined: Jun 2002
Posts: 636
Likes: 0
From: Finksburg MD
Problem re-starting a 89
I have an 89 vertible, stock, auto.. Have never had a problem until now.. It runs great but for some reason some times after you turn it off it will not restart.. Trying to get the car ready for Corvette weekend down OC.. Help
Safety Car
Joined: Jul 2004
Posts: 3,845
Likes: 30
...not enough info!...does it crank and not start?.do you turn the key and it does nothing at all?....
Safety Car
Joined: Jul 2004
Posts: 3,845
Likes: 30
Intermediate
Joined: Nov 2005
Posts: 28
Likes: 0
From: South Carolina
I had a similar thing that happened to my '89 and come to find out two of my injectors were shorting out. When checking the fuel system you might want to go ahead and check your injectors. Either way it sounds like a fuel issue.
Instructor
Joined: Apr 2003
Posts: 197
Likes: 0
Had a similar issue as Bossman89, a bad injector in each bank. ECM would shut each bank down so zero banks at restart. 4 Hours later car would fire up but the idle was bad. Stock 89 A4 coup. New injectors and two new relays for the MAF and no problems for 15 months.
Any codes?
Any codes?
Safety Car
Joined: Jan 2006
Posts: 3,566
Likes: 4
From: Mt Laurel NJ
St. Jude Donor '06-'07
I am chasing a similar problem w/ my '90. I believe it is a bad ECM.
Is your car running rich? Does pushing in the gas pedal help it start? You would need to check fuel pressure, could be a bad/weak fuel pump relay.
Is your car running rich? Does pushing in the gas pedal help it start? You would need to check fuel pressure, could be a bad/weak fuel pump relay.
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Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
no start
if it doesn't crank, check the starter, I just recently went through this, it starts, and then no matter how short the drive, if it warms up enough to open the thermostat, it wouldn't crank. turneds out the plastic starter brush holders expand and pull the starter brushes off the armature.
Drifting
Joined: Feb 2007
Posts: 1,807
Likes: 0
From: Somewherein Pa
Had a similar issue as Bossman89, a bad injector in each bank. ECM would shut each bank down so zero banks at restart. 4 Hours later car would fire up but the idle was bad. Stock 89 A4 coup. New injectors and two new relays for the MAF and no problems for 15 months.
Any codes?
Any codes?
Had two injectors that were bad.....it would start and run, but if I shut it off it would not start for about 10-15 minutes, replaced the injectors....problem gone! Good Luck! 
