Mike Shull
Let’s go…
- Thread starter
- #881
It’s both. I’ve had engine conversions that had idle air issues that were so bad that the engine would accelerate (surge) to 2500 rpms, then stumble and stall when a load was applied from engaging a manual transmission. I’ve also seen ones that had a 4-500 rpm differential at idle when putting a load on it from the transmission. These were all with either aftermarket EFI or the TBI Vortec transplants, and all but one of these were fixed, and it seemed like the biggest factor that I came across, other than the tune, was with adding a heated O2 and positioning the O2 and MAF sensors correctly. None of them had a VSS.Yeah, that was my point. I wonder if the “issues” I had read about were more toward the perfectionist crowd than me.
Most of them just simply fired up and ran without an issue other than maybe a minor 25-50 rpm differential, which seemed perfectly normal. Our stock 1993 Chevy truck was like that and it was fine.
I was asking the questions now because I needed to make the decision about what to do with the harness. That decision has been made and the transmission wires have been deleted. Next I will mount the battery, extend some of the wiring and build a fuse block, then I can get back to wrapping up the wiring under the dash and to the rear. I’m really glad that you steered me towards reconfiguring my factory engine harness. It has been satisfying to figure out where everything goes.