Originally Posted by
Hellbilly
Little update: I got the knock sensor replaced this week and got the truck running good enough that I drove it to work a few days. Had a few issues I was having trouble figuring out. But, Friday, my MAP sensor decided to quit working, so I put the new one back on. This one seems to read about 5-10KPA different than the old one did, but now I'm chasing non-engine related issues. Rear axle seal leaked into the drum, so I gotta get that fixed.
Some of the issues I was having: When coming to a stop, it gets to about 1000RPM and kinda hangs out there, making it feel like the engine is trying to push through the brakes. Until you get to below 5MPH and it switches to idle timing. Would the fix for this be less timing at 1000RPM or raise the max MPH for idle timing?
The other issue is, at idle, I've noticed that the IAC is going all the way to zero and hangs out there till I accelerate again. I've sat in the driveway at idle and played with timing and VE but, it seems like no matter what, it idles 750-775RPM, IAC at 0, and 5 degrees advance. What am I missing?
If it makes any difference, I've had Power Enrichment and DFCO turned off while trying to get VE dialed in. I can get a log to upload today, if you want but I have a feeling everything is going to be a little off again, because of this MAP sensor reading a little different.
Also, I got a wideband, but don't have everything to install it yet. Have to double check PCM connectors, but I don't think I have a wire on the pin needed to log AFR, so I'm gonna have to buy some pins. Or I guess I could steal one from the EGR solenoid wires
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