Trouble starting after new build VS cam

OK, must have been a vaccum issue because I ported the original supercharger and bolted it on last night. Ran all the lines like they are supposed to and it fired up today fine. Whatever was coming back through the throttle body could have been the engine just reversing because of a weak battery couldn't crank it all the way over or something. Either way the beast is running. A bit rough, but I'll run some scans on it tonight while I'm letting it break in and go from there.

Nice! Glad you figured it out!

and now we are back to not running again. Ran fine earlier. Went out to start breaking the motor in and the damn thing wont start again. Have both fuel and spark.

Were you able to scan or anything while it was running?

I'd say start wiggling your harnesses and and stuff. Could be a bad wire. ICM loom ground, stress points like the firewall connector, etc.

Yeah scans came back with no DTC's but it was idling a little rough. I've went over every inch of both sides of the harness. Nothing loose or disconnected. Grounds on both sides are good. This thing is going to drive me insane.

It has to be the injectors not firing or something. I'm getting spark to the plugs but when I take them out they are not even damp. Is there a particular fuse or something for those? Getting plenty of fuel to the rail, I seriously just don't think the injectors are firing.

are you using the 42.5lb injectors or stock ones? if they are stock, are they off the riv or from another motor?

Stock off the riviera. This thing started and ran fine for 30 seconds. I went back out 5 minutes later and ran it for another minute. Ran fine minus a small miss both times. All the sudden I go back out there 2 hours later and it just cranks.

crank sensor get damaged? IIRC that controls injector pulses.

I'm going to unplug it and plug it back in, had a small coolant leak from the water pump that could have gotten it wet.

Mr.Riviera wrote:

crank sensor get damaged? IIRC that controls injector pulses.

Checked that and the cam sensor, damn wires to the cam sensor were melted thanks to a bad water pump gasket shooting steam directly on them. Fixed them up and shes running again. Thanks bud!!

Nice catch Mr. Riv!

Bowers......get it done already

Tryin damn, water pump is bein a bitch now

Finally finished...gotta remove the egr code and do some scanning but mechanically its done.