lq4 swap with a powerglide stock everything accept 243 heads and speed engineering headers for s10 swap did the 1 bar SD tune to it
car is running like shit cant idle backfires etc. is it a crank position sensor? thanks for viewing
lq4 swap with a powerglide stock everything accept 243 heads and speed engineering headers for s10 swap did the 1 bar SD tune to it
car is running like shit cant idle backfires etc. is it a crank position sensor? thanks for viewing
The fuel trims are maxed out lean, so you have a big problem there.
Either a very bad vacuum leak or your fuel pressure is way too low. Needs to be 58psi.
And set the MAF fail high to 0hz in the engine diag tab if the MAF is no longer being used.
Get a wideband if you don't have one yet, you need it to calibrate the fueling.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Originally Posted by 5FDP
thanks for answering. yes I have the wideband its measuring from 15-22 afr I know that's bad. but looking at the rpm gauge on the scanner it seems like its a intermittent signal? I have a code for the crank shaft sensor po336 my fuel pressure is dead on 58. how can I test the the crank shaft position sensor
Ok nobody cares. Well if anybody does I changed the ckp I can now rev it for only 2 seconds then it dies
It's the weekend, can't help everyone.
So now it stays running but dies when it's revved or it starts, runs for two seconds and dies?
Did you change the MAF fail settings too?
I'd also disable codes P1626 and P1631 for the VATS system.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Yes stays running but dies when it?s revved and when it starts
Yes changed the maf to 0
Okay I?ll change that
Now it won?t show my fuel trims
Idk I?ll keep you updated
If the scanner if filled with too many channels, it can stop reporting some data. So if some of the things you are logging aren't really need anymore just remove them. Then re-poll for supported parameters under the vehicles tab and see if things work.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Thank you so much sir
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