LQ9 throttle plate only responds with engine not running - LS1TECH - Camaro and Firebird Forum Discussion

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LQ9 throttle plate only responds with engine not running

Old 01-12-2019, 05:12 PM
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Default LQ9 throttle plate only responds with engine not running

Trying to wrap up a 6.0 swap in my jeep and finally got it running. I't supposed to be from a 2004 escalade. OBD2 not wired up yet, nor are O2 sensors. The guy I bought the motor from demo'd it running and the throttle responded great. I am definitely using the same gas pedal and module he demo'd. Now when I start the engine, it will only idle. When I gas it, I get no change. But when I shut it off, the throttle plate responds to the gas pedal like it should. I did have to cut and weld on the pedal linkage some. Any help would be greatly appreciated. Thanks!
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Old 01-13-2019, 01:03 PM
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OK it's solved. Turned out to be a big vacuum leak.
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