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WOT causes reduced power mode

Old 06-16-2018, 01:45 AM
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Drew03tx
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Default 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.

Last edited by Drew03tx; 06-16-2018 at 01:21 PM.
Old 06-16-2018, 09:06 AM
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redbird555
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Sounds like the tuner forgot to turn off some of the codes with the nw102 as that will do it....
Old 06-16-2018, 09:21 AM
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m.whitmell
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Had this issue and it was my Vitesse throttle device ......
Old 06-16-2018, 11:31 AM
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Drew03tx
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Originally Posted by redbird555
Sounds like the tuner forgot to turn off some of the codes with the nw102 as that will do it....
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.
Old 06-16-2018, 01:22 PM
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Drew03tx
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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.
Old 06-16-2018, 03:05 PM
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03Cobrra
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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.
Old 06-16-2018, 03:33 PM
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Drew03tx
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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.
Old 06-16-2018, 03:58 PM
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JesC6Z
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Originally Posted by Drew03tx
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
wow def got lucky there!
Old 06-16-2018, 04:48 PM
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TXGS507
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Holy S*** that is scary!!
Old 06-16-2018, 05:05 PM
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Jayfabs
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Close call!!!
Old 06-16-2018, 05:08 PM
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Millenium Z06
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Did you Locktite it?
Old 06-16-2018, 05:09 PM
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Millenium Z06
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Originally Posted by 0H8Z06
Holy S*** that is scary!!

Ask me again why I haven't added an MSD Intake
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Old 06-17-2018, 08:12 AM
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TXGS507
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Hey Wes, why haven't you added an MSD intake yet...?

Looked at mine yesterday... tight as F***… Also the bolt is long as f***.. Not sure how yours came loose....?


Originally Posted by Millenium Z06
Ask me again why I haven't added an MSD Intake
Old 06-17-2018, 08:43 AM
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phils C5 vette
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Originally Posted by redbird555
Sounds like the tuner forgot to turn off some of the codes with the nw102 as that will do it....
Its always the tuners fault. lol
Old 06-17-2018, 09:10 AM
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jayyyw
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Mine was loose when I removed my MSD intake. Glad to be rid of that POS.
Old 06-17-2018, 09:38 AM
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Millenium Z06
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Originally Posted by 0H8Z06
Hey Wes, why haven't you added an MSD intake yet...?

Looked at mine yesterday... tight as F***… Also the bolt is long as f***.. Not sure how yours came loose....?
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
Old 06-17-2018, 10:21 AM
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Michael_D
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Originally Posted by redbird555
Sounds like the tuner forgot to turn off some of the codes with the nw102 as that will do it....
Really? Guess I've just been lucky with all the NW102's I've calibrated for. Never disabled or changed the reporting of any DTCs.

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Old 06-17-2018, 12:25 PM
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RedZ4me
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Wow! Good ole MSD again, I posted waiting for version 2 a few times - no more, trying the LS9 now 👍
Old 06-17-2018, 03:08 PM
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TXGS507
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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.


Originally Posted by Millenium Z06
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
Old 06-18-2018, 12:27 PM
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LS1Steve
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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.
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