Weird issue after installing new heads. The fuel pump gets no power, don't hear it winding up. Plugged in an OBD II code scanner, and turn the key to accessory on position, fuel pump working, but no spark! However, no worky when uplugged, WTF?? Looks like a weird grounding issue, but I have no idear. Any thoughts? We getting power to the fuse boxes, check with multi-meter, also checked at the pump, we are getting power to the harness near the fuel pump.

 

Make sure you got all the grounds back on that is on the back of the drivers side head.

 

Thank you..We missed that one, plugged in now. Fuel pump is definitely working, but still not spark to the coil packs. We have power coming from the harness, just no spark from the coils??

 

Check all your fuses and make sure your crankshaft position sensor is plugged in and the wiring is not damaged.

 

Going to check that today and perhaps run some more grounds. Thank you for the help.

 

no spark on one side or both?

 

I got it...Took the intake manifold back off. I missed the other two grounds . Bolted down the ALL of the grounds the 2nd time around, and she fireds right up!!! Thank you LS1TECH FTMW!!!!

 

haha, every time I do something like that I know that someone on here has done it before and can help me out.

 

I figured that was the case but i didn't want to tell you that you were a idiot and over looking them so i just let you figure out yourself that you were a idiot and over looking them so i didn't look like an *******! lol Glad you got it back up and running!

 

LOL, thank you for taking it easy on me. I really felt like a jackass when I took that intake off and saw that two of the three leads not grounded to the driver-side head. I was relieved at the same time, as I was not looking forward to anymore diagnosing, just wanted to get the car running.