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What would cause this...

Discussion in 'HYBRID -> ED-EF / DA' started by jetpilot106, Aug 18, 2009.

  1. jetpilot106

    jetpilot106 New Member

    Likes Received:
    Aug 2, 2009
    Ok I bought some one elses project and now im paying for it. Ok the car is a 91 CRX hf with a d16z6 swap. The car runs just as im stating. It starts up great, the idiol surges around 1500-2000rpm. When you rev it up it spudders from 2000-4000ish, than opens up past 4200 like nothing is wrong. It has the xenocron obd1 jumper, 4 wire o2 sen. I read all the internet instructions for this harness double checked map sensor and all that stuff. I also did a tune up, cap, rotor, wires, plugs. Still same thing. I also know my Vtec pressure switch had low resistance when I checked it compared to my buddys d15. I didn't think that would effect the low rpm problem. Im kinda new to hondas and lost at this point any other help would be great
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