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Old 09-01-2015, 10:14 AM   #9
Liltroy
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Join Date: Sep 2014
Location: Knoxville,Tn
Posts: 506
Re: lq4 swap wont rev over 2500rpm help please

Quote:
Originally Posted by BR3W CITY View Post
Does it throttle-check when you go key on? (the click-click that you'll usually hear)

What are you monitoring this on? Using HP Tuners you should be able to watch what the TPS is seeing in raw output. If your pusing down 2/3 of the way but getting 20% throttle, then either the TAC, Pedal, or TB has an issue OR something in your tune has been modified.

If your only using a simple scanner or scanguage, try getting it on a dealer TacII or having your tuner run it in VCM Scanner so you can see what its doing or log the TPS functions.
I'm using a scanner that shows live data and also has graphing. With key forward and engine off I'm getting proper throttle response and tops out at 99.6% (no vehicle in my driveway actually tps's at 100% so I'm assuming that's good). But once I start the engine, no matter how far I put the pedal down it won't open the throttle over EXACTLY 20% and acts as though there's a soft limiter at 2500rpms.
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