ok i got my tune a couple weeks ago and day and night diffrence (thank you allen) well we tuned it for 89 and 93 octane i ran a full tank of 93 while we did the street tune....
then a couple days ago i ran some 89 cause of the gas prices and at half pedel to heavy i could hear the pinging really badly...
what do you guys think??? i ended up putting half a tank of 93 back in the truck to stop the pinging...
does the computer need to still relearn with 89???
02 Chevy EcSb Z71, 5.3, Helix Tb Spacer, AEM Brute Froce Intake, Msd 8.5 wires, NGKTR55 IX, B&M 25k Trans Cooler, Hypertech 160, Nelson Tune, Nelson Harness & Ls1 fans, Fully Built tranny, tb2600, 216/224 551/551 115LSA, yeller z06 springs, magnaflow, cut-out, hi-flow cats, etc...
I have the 87-89 tune and its doing the same thing.Im going to get some additive for the gas......3.20 and its probablly 80 octane here in Fort Worth.We are gettin screwed ...twice the price and lower quality.Maybe Allen can help us.
Vortec Performance Tuned
LQ9 built 4L60 LTs and a billion miles on the speedo!
I have a 87/89 dual tune in mine, and Allen told me that if I run a tank of 89 and switch back to 87, I need to give it probably a couple days to let the PCM relearn with the 87. So far, that has been exactly the case
2002 ECSB, Nelson Tune, LS1 electric fans, 145A alternator, K&N FIPK, 160º T-stat, TB coolant bypass, Corvette servo, 4 headlight mod, blue LED gauge cluster
hey this "pinging" what does it sound like excatly ivew never had the issu well atleast i dont think so but have always been wondering what it sounds like
1999 GMC Sierra black reg cab short bed SLE Z71 5.3 <--CARDOMAIN PICS
NELSON 93 hot tune, 02 PCM, VOLANT Ram air intake, MSD wires, ACdelco iridium plugs , Edelbrock ceramic shorty headers, jegs off-road y pipe, Dynamax int pipe, 3" Magnaflow Exhaust with turndown, EGR removal, throttle body bypass, vette servo, long servo pin, performance 4th apply piston, B&M shift kit, SLP 160* thermostat, LS1 Fans, NELSON harness, ported and polished throttle body (did it myself, for free lol)..... _______? cam is next as soon as i stop spending all my money
It sounds like dropping marbles into a glass jar. Drop them in 10-15 per second and you have the sound.
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning
ok well i dont have a jar of marbles handy so ill take your word for it lol
1999 GMC Sierra black reg cab short bed SLE Z71 5.3 <--CARDOMAIN PICS
NELSON 93 hot tune, 02 PCM, VOLANT Ram air intake, MSD wires, ACdelco iridium plugs , Edelbrock ceramic shorty headers, jegs off-road y pipe, Dynamax int pipe, 3" Magnaflow Exhaust with turndown, EGR removal, throttle body bypass, vette servo, long servo pin, performance 4th apply piston, B&M shift kit, SLP 160* thermostat, LS1 Fans, NELSON harness, ported and polished throttle body (did it myself, for free lol)..... _______? cam is next as soon as i stop spending all my money
I had that pinging issue when I had my 99 PCM, with the 01 it has gone away so far. It will ping the first couple of days or so, just until you drive the PCM a few miles to let it relearn the timing curve.
Chris
2009 Silverado, HPTuners, all stock.
ive never had pinging
1999 GMC Sierra black reg cab short bed SLE Z71 5.3 <--CARDOMAIN PICS
NELSON 93 hot tune, 02 PCM, VOLANT Ram air intake, MSD wires, ACdelco iridium plugs , Edelbrock ceramic shorty headers, jegs off-road y pipe, Dynamax int pipe, 3" Magnaflow Exhaust with turndown, EGR removal, throttle body bypass, vette servo, long servo pin, performance 4th apply piston, B&M shift kit, SLP 160* thermostat, LS1 Fans, NELSON harness, ported and polished throttle body (did it myself, for free lol)..... _______? cam is next as soon as i stop spending all my money
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