I am only obd1 so not up on these systems but have been watching this for quite awhile. Would it have been an idea to reset the blm before pulling the o2s. I would think that would allow it to start on a uncorrected original ve table.
I am only obd1 so not up on these systems but have been watching this for quite awhile. Would it have been an idea to reset the blm before pulling the o2s. I would think that would allow it to start on a uncorrected original ve table.
6395, BHDF, 7.4 BBC lightly modded now 6395 BMHM back to BHDF
Thanks. Thats the exact information I needed. I’m not sure if this is how he reset using his SnspOn scanner. I’ll ask when I pick the car up.
Please tell us (again if necessary) how you are determining this? There is a level of detail here that seems impossible. It's like reporting measurements to the hundredth of an inch using only a carpenter's measuring tape. The most likely way to determine this is to measure unfiltered O2 output with a scope concurrently with injector or ignition pulses for a cylinder based reference. If you are relying on individual cylinder injector trims to determine rich/lean operation you will be led astray.three cylinders are dead rich one is very near
When the catalysts were replaced, was either one broken up or missing a honeycomb element? If so, a piece might be left inside the muffler to clog up one side, and lower engine vacuum. Cut off the exhaust (or drill a 1/2 or larger hole) on the straight run prior to the muffler, but after the converter, and then look at your readings to see if they improve.
Just cut in a spot you know you can weld it back together.
Spoken from experience.
Last edited by vilefly; 11-23-2019 at 04:20 AM.
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