Quick tuning question
02-16-2007, 01:34 PM
#1
Quick tuning question I'm new to everything about LS1's, so I'm learning little by little. My question: Can a bad tune affect the performance of the 4L60E? The guy I bought my car from said it has HP Tuners on it and his roomate has tuned it a couple of times. Now, two months later, the "service engine" light is on and the tranny is not shifting right. The tranny has felt strong the whole time and this happened from one second to the other. Does it need to be tuned again?
02-16-2007, 01:39 PM
#2
Of course a bad tune can screw things up, but it can also be a grey area as well...If your talking about the 98 in your sig your talking about a near 10 year old car/tranny so it could also just be age & wear.
FWIW 98's have the least amount of TM of all the years so unless the tuner did something nuts with the pressure settings its probably not in the tune IMO.
FWIW 98's have the least amount of TM of all the years so unless the tuner did something nuts with the pressure settings its probably not in the tune IMO.
02-16-2007, 01:55 PM
#3
Yes it is the 98 Formula. After the light came on it started shifting like crap then a little while ago on the freeway the light turned off and all was fine it pulled as it did before, good. And now the light is back on and I'm back to the same problem.
02-16-2007, 02:01 PM
#5
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2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
02-16-2007, 02:05 PM
#7
Originally Posted by spyterus
Sorry, but again I'm new. What is TM?
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02-16-2007, 02:07 PM
#8
Originally Posted by spyterus
Yes it is the 98 Formula. After the light came on it started shifting like crap then a little while ago on the freeway the light turned off and all was fine it pulled as it did before, good. And now the light is back on and I'm back to the same problem.
02-17-2007, 12:31 PM
#18
Make sure you are getting 12V to the fuse with the key on. Use a meter or a test light. Check for 12V on the pink wire going to the MAF. http://www.gearchatter.com/si/218496.png Check for 12V on the pink wires going to the O2 sensors. http://www.gearchatter.com/si/218508.png
