89 No start
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
Someone else hopefully will chime in, but I thought a 94 Lt1 had sequential fired injectors whereas an l98 has batch fired.....I don't know honestly if that's right or wrong, or if it would make a difference. Did you try running a hot wire to the ALDL? definetly a fuel delivery problem if starting fluid gets it to run!
Thread Starter
Heel & Toe
Joined: May 2007
Posts: 20
Likes: 0
From: Montpelier VA
You are correct, the 94 had sequential firing, but from what I read its the same injector.
As far as it working or not, I'm pretty sure I read on here that it would work. But I still could be wrong. Hopefully someone that sees this will know b/c if thats the problem I'd buy them and be done with it.
I hadn't tried running a hot wire straight to the aldl yet. I hadn't worked on it since the last day that I posted. Been pretty busy with everything lately.
Edit: I tried to kick the tire too.. it didn't work lol!
As far as it working or not, I'm pretty sure I read on here that it would work. But I still could be wrong. Hopefully someone that sees this will know b/c if thats the problem I'd buy them and be done with it.
I hadn't tried running a hot wire straight to the aldl yet. I hadn't worked on it since the last day that I posted. Been pretty busy with everything lately.
Edit: I tried to kick the tire too.. it didn't work lol!
Instructor
Joined: Apr 2003
Posts: 197
Likes: 0
I'd send Jon (FICINJECTORS) a PM asking about the compatibility of the injectors. I thought the 88-91 L98 multitechs were different from 1994 since they had such a high failure rate.
Jon is the expert and if you need injectors, he's the best source.
Jon is the expert and if you need injectors, he's the best source.
Thread Starter
Heel & Toe
Joined: May 2007
Posts: 20
Likes: 0
From: Montpelier VA
He actually sent me a pm monday to call his shop and he'd give me a hand with it. I hadn't had a chance to call him yet tho but plan to as soon as I get some more time.
Melting Slicks
Joined: Aug 1999
Posts: 2,240
Likes: 42
From: Baltimore, MD USA
The Security light blinking while cranking is not normal and indicates there could be a communication problem between the ECM and Pass Key Decoder Module.
Since you replaced the ECM, that leaves the Pass Key Decoder Module.
I believe it sends a 50hz square wave signal to the ECM when the key pellet resistance matches what the Pass Key Decoder Module is programmed for. The ECM can then pulse the injectors. To verify the integrity of that square wave would require an oscilloscope.
Have you tried pulling codes by shorting Pin A to Pin B on the Diagnostic connector to see if any ECM error codes are set?
Since you replaced the ECM, that leaves the Pass Key Decoder Module.
I believe it sends a 50hz square wave signal to the ECM when the key pellet resistance matches what the Pass Key Decoder Module is programmed for. The ECM can then pulse the injectors. To verify the integrity of that square wave would require an oscilloscope.
Have you tried pulling codes by shorting Pin A to Pin B on the Diagnostic connector to see if any ECM error codes are set?
Intermediate
Joined: Jul 2005
Posts: 38
Likes: 0
From: PHILLY PA
call jon,,i went through all of this (cranks,but no start)3 weeks ago,,,1990 put in 8 bosch III,,22 #,,,,CAR fired right up,,Believe me, i am not a mechanic,, but this solved my problem.,,jon and the other corvette brothers were helpful through all of this. good luck,,and let us know the outcome,,,
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
You are correct, the 94 had sequential firing, but from what I read its the same injector.
As far as it working or not, I'm pretty sure I read on here that it would work. But I still could be wrong. Hopefully someone that sees this will know b/c if thats the problem I'd buy them and be done with it.
I hadn't tried running a hot wire straight to the aldl yet. I hadn't worked on it since the last day that I posted. Been pretty busy with everything lately.
Edit: I tried to kick the tire too.. it didn't work lol!
As far as it working or not, I'm pretty sure I read on here that it would work. But I still could be wrong. Hopefully someone that sees this will know b/c if thats the problem I'd buy them and be done with it.
I hadn't tried running a hot wire straight to the aldl yet. I hadn't worked on it since the last day that I posted. Been pretty busy with everything lately.
Edit: I tried to kick the tire too.. it didn't work lol!
