can you do a datalog koeo to check the reading of the sensors?
I do have an adjustable Skunk2 cam gear and its at 0°, timing was off by 1 tooth, but I set it at factory spec and its still running the same. The grounds are exactly the way you stated, with brand new steel braided ground straps.so to make it short, you removed the powertrain, and only touched wiring and the timing belt?
If you do not have an adjustable cam gear, seems like you are simply off a tooth possibly.
Or a ground wire is unhappy somewhere. Make sure ONLY the harness ground is on the thermostat housing. ANy other extra grounds, be sure to keep them OFF that area.
Make sure the big battery ground is nice and tight.
I have done all of that. But I'm not opposed to re-do all of it again. Was wondering if the loose hose where the black box used to be was killing most of the vacuum.Does it idle at all by itself? or is it very sensitive, and easy to stall out?
See about getting a cross reading of RPM, TPS, MAP, IAT, and ECT.
With motor off, but ignition on, do a few full slow swings of the throttle and watch the data.
Check temperature sensors to approx ambient when the engine is cold.
Something is odd.
Hell, could simply be a spark plug or plug wire got upset. Or ignition control module is being finicky, and producing a weak ass spark
And no, it dosent idle by itself at all.I have done all of that. But I'm not opposed to re-do all of it again. Was wondering if the loose hose where the black box used to be was killing most of the vacuum.
The port was definitely leaking, but heard no hiss. I will check the entire intake manifold and throttlebody. It takes 2-3 seconds of cranking before it turns over. Maybe re-install the pcv system, being that's the only major item that has been changed.very strange.
Does it start up fast, and die out? does it take quite a bit of cranking?
If it starts fast, you can rule out being pig rich, like a stuck injector or something.
If it cranks forever, then still dies, then maybe there is a crack somewhere on the intake manifold or throttlebody.
You could try spreading some wheel bearing grease around all intake seems to temporarily block leaks.
I dont think the block's black baffle box would matter, as I think if it were leaking bad enough, it would hiss like crazy