WOT causes reduced power mode
#1
WOT causes reduced power mode
While playing around with the car today it went into reduced engine power. I turned the car off for a few minutes and started it back up and it idled and drove fine as long as I didn’t go WOT. I could rev the car in neutral pretty much to redline as long as the pedal didn’t touch all the way to the floor, after a few taps too WOT the car goes back to reduced engine power. I have the NW 102 throttle body, been in the car for several months now with no issues. Could it be the accelerator pedal sensor or would that give me no throttle at all? Haven’t had the chance to read the codes yet since it just happened and all the parts stores were closed when it happened.
(Update), so i had the codes ran and it came up with P1516 Throttle Actuator control TAC module throttle actuator position performance.....and P2101 Throttle actuator control motor circuit range performace.
(Update), so i had the codes ran and it came up with P1516 Throttle Actuator control TAC module throttle actuator position performance.....and P2101 Throttle actuator control motor circuit range performace.
Last edited by Drew03tx; 06-16-2018 at 01:21 PM.
#4
Car has been tuned for a while with the nw 102 on there, several dyno pulls and never had a problem. Is it something that can happen later down the road
Last edited by Drew03tx; 06-16-2018 at 12:44 PM.
#5
so i had the codes ran and it came up with P1516 Throttle Actuator control TAC module throttle actuator position performance.....and P2101 Throttle actuator control motor circuit range performace.
#6
Instructor
I had that issue with the 102 and the vitesse on my ZR1. Got rid of the vitesse and switched to a boosted 102. No more issues.
Last edited by 03Cobrra; 06-16-2018 at 03:06 PM.
#7
Fixed it....and it makes me nervous, So I pulled off the throttle body and found a nut and rod that connects through the center of the MSD intake was completely loose and the rod had backed itself so far out it was hitting the throttle body plate! I have no idea what would have caused this to happen but if that nut would have came all the way off....goodbye LS7 here is a picture of the nut im talking about... the picture was taken after i tightened it back up
Last edited by Drew03tx; 06-16-2018 at 03:34 PM.
#8
Fixed it....and it makes me nervous, So I pulled off the throttle body and found a nut and rod that connects through the center of the MSD intake was completely loose and the rod had backed itself so far out it was hitting the throttle body plate! I have no idea what would have caused this to happen but if that nut would have came all the way off....goodbye LS7 here is a picture of the nut im talking about... the picture was taken after i tightened it back up
#9
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Holy S*** that is scary!!
#11
Did you Locktite it?
#13
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#16
I bet that with you touched every bolt, you'd find quite a few loose. There's too many threads in this forum about that intake consistently having the same problems for me to believe otherwise. It may flow well and make power but certainly seems to be more trouble than it's worth, at least to me
#17
#18
Le Mans Master
Wow! Good ole MSD again, I posted waiting for version 2 a few times - no more, trying the LS9 now 👍
#19
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Luke did mine... You know how **** he is... Mine are all nice and tight... although I have only put about 200 maybe 300 miles on the car since the work and WGF event... if that.
I bet that with you touched every bolt, you'd find quite a few loose. There's too many threads in this forum about that intake consistently having the same problems for me to believe otherwise. It may flow well and make power but certainly seems to be more trouble than it's worth, at least to me
#20
Racer
Wow, getting rid of MSD due to loose bolt? I'll happily buy it from you on the cheap...
Its a bolt people. There are thousands of bolts on your cars, many of which will result in unfavorable events if they come loose. Loctite it, torque it properly, and it'll be fine.
Its a bolt people. There are thousands of bolts on your cars, many of which will result in unfavorable events if they come loose. Loctite it, torque it properly, and it'll be fine.
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