Thread: still burst knock no matter what >_<

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PE enable set at 28% throttle and the TCC unlock 4th is set at 12%. no matter how slow or fast i apply throttle right around 28-2900RPMs at ~30-40% throttle i get the burst knock. the max allowed spark retard is set at 13*. i also went ahead and lowered my PE enable to 25% to no avail, still burst knock. any ideas?

Have you worked with the AE tables at all? PE will dump more fuel when needed BUT you still are going to need extra fuel added for tip-in accelation and this is where the Accelerator Enrichment will help clean up those problems.

yes, i have the 25-30% area increased over stock, but not so much that they're close to the other AE TPS % such as 35% or 20%

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i tried alot of ideas as well as a few members gave me some tips and tried to help me figure it out but i think its something physical and i think my lower motor mount was hydraulic and cracked and leaked. i recall months ago when i was under the car and had to remove my passenger wheel i noticed oily residue resting around the mount but wasnt certain if it was oil and water or if i was leaking motor oil(doubt it). right now im in the process of getting another mount and gutting it and filling it with 80A urethane compound and have a polyurethane motor mount. just a test to see if it indeed is something physical and not in the tune as i also get the large amount of KR at the 1-2 shift, not so much at the 2-3 shift though.

I would love to see a write up on making your urethane mount. I had some information at home on how to make your own but had not seen it done on the GP yet.

homemade polyurethane mounts
a friend sent me a link just this morning.

Cool beans, I'll have to read over in more detail once I get home.

Why are your LTFTs positive all over the place?

im leaning towards the fact that rather than getting the O2 extension i spliced wires with 18 gauge wire and read on the CGP that a few ppl did that but the reading soon after were delayed as well as being off. my PLX SMR-AFR WB fluctuated between 14-16 cruising. i havent the chance to replace the O2 sensor yet, but i just bought the O2 extension though.

will i had my dad brake torque the motor while i looked at the motor itself and see if it was moving alot or alittle. it only moved slightly, like less than an inch of moving back and forth so i dont think my lower motor mounts bad >.<
what would cause the car to get burst knock right around entering boost as well as at the 1-2 upshift? im now leaning towards something physical hitting or rubbing. my downpipe is clear from hitting the subframe, dipstick's not touching anything. since imy tranny's having issues ONLY at a stop or near a stop. would free rev and if applied enough gas to have it pop back into first gear. i believe its a worn output piston from what was on trannyman's site. would it be something else in or around the tranny as a possibility?
just need some possible things to check. possible bad wire(s) that would cause burst knock?