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Ignition

Derek

Well-known member
Joined
Mar 21, 2002
Messages
94
Location
Melbourne,Australia
Corvette
1989 red C
I have a intermittent problem on my 89.vette
after a starting the engine cuts out . And attempt to start again floods the engine.The car my run for a very short time,or up to an hour....my thoughts are thats its a problem with the ignition module...

Hi from Australia

(w)
 

compyelc4

Well-known member
Joined
May 1, 2002
Messages
607
Location
Dayton, Ohio
Corvette
'95 LT1 Coupe, Comp Yell; C6 Roadster, Vel Yell
Derek-

Have you read any codes? System may have set one w/o Check Engine Light setting.

Immediately after stall, do you have spark to plugs?
 

Derek

Well-known member
Joined
Mar 21, 2002
Messages
94
Location
Melbourne,Australia
Corvette
1989 red C
thanx for coming back
Its going in on Tuesday,for a code read,but in the mean time I was just trying to look for the easy things,before it cost $$.

there is a spark,however a weak one,not hot enough to fire a fresh charge of gas....might be the coil?..and since writing it will not start at all......sigh

I`ll post you back with the outcome
Derek

:w
 

Derek

Well-known member
Joined
Mar 21, 2002
Messages
94
Location
Melbourne,Australia
Corvette
1989 red C
Hi guys
it was the ECM at fault,sending triple signals to the injectors,thanx for the help.

Derek
:w
 

compyelc4

Well-known member
Joined
May 1, 2002
Messages
607
Location
Dayton, Ohio
Corvette
'95 LT1 Coupe, Comp Yell; C6 Roadster, Vel Yell
The ECM thing surprises me. It is uncommon for one to go out. Anyway, I thought the Opti-crap sent the signals to fire the injectors on the "low resolution" output circuit of the Opti. Did you have to replace the computer or the PROM in the computer?
 

Derek

Well-known member
Joined
Mar 21, 2002
Messages
94
Location
Melbourne,Australia
Corvette
1989 red C
Hi
they told me the PROM had to be changed
Any way,the car goes better that before....but it cost AU$900
cos the ppl that did the conversion made it hard to get at the unit

Derek :w
 

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