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Thread: 4000 RPM limit

  1. #1

    4000 RPM limit

    I finally got this 1.4l running good and it won't rev past 4,000rpm. It is completely stock no engine mods or ecm upgrades. Its a 2012 cruze 1.4l engine in an off road buggy, is there any one thing or a combo that can cause this?

    The throttle is only active for about 1/2 to 2/3 travel too. I think I went over everything but I must have missed something.

    I could really use some HELP, PLEASE Jim Thanks

  2. #2
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    Post your latest tune.

  3. #3
    Senior Tuner BackyardTurbo_FTW's Avatar
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    Prolly missing the neutral switch and the stock tune has the park/neutral rev limit set at 4k

  4. #4
    OK would that still work with the vats deleted and tcs inabled? If that has nothing to do with it can that be changed to say 6,000rpm? I have been reading as much as I can but not sure on how to or if it can be done.
    All the sensors and wiring are just as stock would be. The only thing changed is the air cleaner and exhaust.
    Last edited by carotene; 12-12-2019 at 03:05 PM.

  5. #5
    Senior Tuner BackyardTurbo_FTW's Avatar
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    Yup, set the park neutral cell to your actual rev limit and you should be fine

  6. #6
    Advanced Tuner
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    CruzeRevLimit.PNG

    Go here and change the bottom 3 rows to 6500 (or... whatever you like).
    Daily Driver= 1998 Pontiac Grand Prix GTP Coupe (3.4 pulley, SD Headers, SLP catback, FWI, 180 t-stat, hotwired FP, Autolite 103's, poly dogbone bushings, solid rubber engine and trans mounts, self tuned with HP Tuners)
    Weekend Cruiser= 2009 Pontiac G8 GT (Vararam, TSP LS3 N/A Stage 1, OBX, CTS-V converter, MagnaFlows w/ J-Pipes, 160 t-stat, self tuned with HP Tuners)
    Project Car= 1991 Chevrolet Camaro RS (On3 7875, LM7 build on hold)
    Truck= 1995 K1500 ECSB 5.0 5-speed (Dusty...)

  7. #7
    thanks to both of you I must be a little behind in the brain dept because I looked at this before but because it was fuel I discarded it. again Thanks, Jim

  8. #8
    Advanced Tuner
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    Quote Originally Posted by carotene View Post
    thanks to both of you I must be a little behind in the brain dept because I looked at this before but because it was fuel I discarded it. again Thanks, Jim
    Youre welcome. Always happy to help...
    Daily Driver= 1998 Pontiac Grand Prix GTP Coupe (3.4 pulley, SD Headers, SLP catback, FWI, 180 t-stat, hotwired FP, Autolite 103's, poly dogbone bushings, solid rubber engine and trans mounts, self tuned with HP Tuners)
    Weekend Cruiser= 2009 Pontiac G8 GT (Vararam, TSP LS3 N/A Stage 1, OBX, CTS-V converter, MagnaFlows w/ J-Pipes, 160 t-stat, self tuned with HP Tuners)
    Project Car= 1991 Chevrolet Camaro RS (On3 7875, LM7 build on hold)
    Truck= 1995 K1500 ECSB 5.0 5-speed (Dusty...)