issues with tune
08-09-2012, 12:12 AM
#1
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issues with tune Long story short, switched cam, converter, intake tb and maf. Had it retuned. Car likes to die when braking suddenly, and it bucks doing around 45-50 un 4th gear.
Here's a link to my thread on hpt forum. It's pretty dead over there.
http://www.hptuners.com/forum/showthread.php?t=40005
Here's a link to my thread on hpt forum. It's pretty dead over there.
http://www.hptuners.com/forum/showthread.php?t=40005
08-11-2012, 07:13 AM
#2
I have the same problems sometimes. Cant give the car to much throttle in reverse or it will stall when letting off. Turned the TB set screw in and it gets rid of it but then I end up with a high idle and cruise control effect which I hate. I havent been to the track for the waterbox yet so it could be interesting ugh.
I also have a slight surge/bucking thing going on.
I also have a slight surge/bucking thing going on.
08-11-2012, 05:54 PM
#3
The cars need to be tuned. You need to start from the beginning and tune your VE then move to other stuff like MAF, Base idle airflow, timing, idle speed etc etc
You can't just turn the set screw as you have ot reset the TPS sensor after doing so.
You can't just turn the set screw as you have ot reset the TPS sensor after doing so.
08-13-2012, 05:48 PM
#5
Fast intakes love to leak. Alot leak through the pours of the mold. Alot of times this causes idle problems. Not all cars but I've seen it alot lately. Only tuning that seams to get rid of it is hangIng the idle more than ussual.
As for the surging. At that area if the converter is locked it would put it in the cam surge rPm for light throttle.
As for the surging. At that area if the converter is locked it would put it in the cam surge rPm for light throttle.
08-13-2012, 05:53 PM
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both of the first two posters cars need to be retuned.... its that plain and simple.... get a good tune and it wont surge buck or stall... damn near drive like a stock car except lope and the power LOL
08-16-2012, 12:29 PM
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Fast intakes love to leak. Alot leak through the pours of the mold. Alot of times this causes idle problems. Not all cars but I've seen it alot lately. Only tuning that seams to get rid of it is hangIng the idle more than ussual.
As for the surging. At that area if the converter is locked it would put it in the cam surge rPm for light throttle.
As for the surging. At that area if the converter is locked it would put it in the cam surge rPm for light throttle.
Has anyone had issues with the ls7 maf and 100mm housing vs the 85mm maf? I'm thinking that may cause an issue as it was being a pain during tuning
