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4k idle

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Just started my Z up after many months and its idling at 4,000 revs. Theres no exhaust from cat back on, so sounds pretty bad. Ive had the plenum off and 555 injectors added with new ecu. I probs have some vacuum hoses wrong but do I need to do anything due to the new ecu?

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    As said check your tps is set right and the throttle cable is not holding the throttles open.

    Edited by Steams

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