Got fuel, got spark, no start.

[blaze2tires]

I recently purchased a 94 MTX with a rod knock. I replaced the engine with one out of another running SHO. I have spark from all plugs and fuel at the rails but it won't start. Thinking it may be a harness or computer problem I swapped out front harnesses/IRCM and ecu's from another 94 MTX and still the same thing. Any suggestions?

 

[projectSHO89]

Check your injectors to see if they're firing.

Steve

 

[blaze2tires]

Check your injectors to see if they're firing.

Steve

I forgot to mention that. When I pull the plugs, they have no fuel on them- so there is no pulse at the injectors and they are not firing...but why? All connections have been made to the harness and I have triple checked.

 

[AREA 91]

Did you remember to hook up the ground wire that sits under the intake, on top of the block? It's part of the fuel injection wiring harness.

 

[blaze2tires]

Did you remember to hook up the ground wire that sits under the intake, on top of the block? It's part of the fuel injection wiring harness.

Yes. Even tried a different one off the other parts car I took the harness off of.

 

[blaze2tires]

So no one knows any other problems I might be over looking? I thought this was the best sho club around! Please help thanks

 

[djcannon]

Is your intake manifold painted where your ground wire sits? If so, that could cause a bad ground.

 

[blaze2tires]

The intake is not painted other than factory.I have put a diffrent ground strap to the intake and still nothing.I tried pulling code just to see if any thing came up that I could use and I did not get anything that would cause it to not start.Does anyone have any other ideas. THANKS, JASON

 

[SuperchargedSHOguy]

Jason is not a amature to the SHOs. Please, serious replies only so he can get his project going. I was unable to figure it out as well.

 

[Green Sho]

when you turn your key on...is the check engine light dim? If it is then check the ground cable from the battery going to the computer....i had that problem a while back. fixed the ground, and it fired right up

 

[blaze2tires]

It was the engine harness I replaced it and the engine fired right up!