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RBpete

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  • Car(s)
    1990 r32 gts4
  • Real Name
    Peter Wilcock

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  1. @Dose Pipe SutututuThe reason i thought it may of been tps is because idle bounces up and down sometimes
  2. @GTSBoyFuel pump is new. I haven’t tested the fuel pressure under load but that might be worth trying! fuel pump is still just plugged straight into factory loom without a constant 12v
  3. Hey guys Recently had my rb20det Gts4 Rebuilt. The car seems very laggy until about 4.5-5k revs until boost hits all at once, when shifting on the highway from 3rd to 4th or 5th gear it also jerks and shudders until boost hits again it definitely does not seem normal. Sometimes between shifting it will pop out the exhaust. The car has just had timing set up correctly and also a vacuum leak test. also had a compression test done which came out good. next thing to try will be testing the tps If anyone has any ideas on where else to try look at would be appreciated! car just has a fmic and a walbro 255lph fuel pump. still factory ecu
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