1989 with start up problems, help please
03-21-2007, 09:17 PM
#1
Safety Car
Thread Starter
1989 with start up problems, help please
Hi Guys,
A friend of mine asked me to post this for him. Any ideas or help is much appreciated.
Aloha,
Larry
1989 auto 135K miles,>>> Start fine and run good until
it is shut off. Then it will not restart until cooled down......Injectors pumping,good fuel pressure
and compression, sparks fine, new coil distributor plug wires, ignition module.
A friend of mine asked me to post this for him. Any ideas or help is much appreciated.
Aloha,
Larry
1989 auto 135K miles,>>> Start fine and run good until
it is shut off. Then it will not restart until cooled down......Injectors pumping,good fuel pressure
and compression, sparks fine, new coil distributor plug wires, ignition module.
Last edited by Larrym96815; 03-21-2007 at 09:39 PM.
03-21-2007, 10:35 PM
#2
Team Owner
Member Since: Mar 2001
Location: Cincinnati, Oh USA
Posts: 53,930
Likes: 0
Received 26 Likes
on
23 Posts
Engines require spark and spark at the right time, fuel, air, (and in the correct ratio) to start and run. Check with a timing light for spark timing and check that the spark on a pulled plug wire will jump easily 1/2 inch. Engines won't start on a weak spark. When it won't start, measure the fuel pressure and observe the time it takes to lose pressure with the ign off. If it falls rapidly, you have leaky injectors which cause a too rich mixture to start.
If there is a leaking injector(s), putting the ECM into "flood mode" will help with hard starts.
