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  1. R

    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    Theres nothing wrong with the multi meter its used by a professional and its snap. If i wire my other car white its running directly to the pump, it gets 12.5 volts but no fuel pressure increase at all
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    I have already tested the relay and resistor as well as tried 3 other ones, however the fuel resistor gets really hot like you can't touch it hot.
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    23 psi at 1500 rpm and about 10-15 in the 3000 range. Fuel pump voltage is 5.80 at idle and 11 with B+ and FP jumped. I Tapped into the fuel pump at the pressure sending unit in the trunk I'm going to check the voltage when revving it, just waiting for some help from a second person.
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    Okay so i did another fuel pressure test its fine at idle again with and without vacum its 30-40 psi. When i give it hard gas it goes down below 10 psi and then if i hold the gas down it slowly builds to about 20 psi. I jumped b+ and fp and it seems to slightly improve but its still cutting out...
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    here is a video of what the car is doing https://www.youtube.com/watch?v=qBbIHxYnnag
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    I have some better pictures. You can see the smaller ground from the manifold taps into that white and grey wires, but continues on into nothing it was just taped off and the guy I bought the car off couldn't get it to run right either.
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    I have to borrow a fuel tester again. Tried a different TPS mounted to the throttle body already same issue. I have this problem near the ECU one of the main grounds (from the manifold) the smaller diameter brown wire with a blue tracer splices into a solid white wire at the ECU and then goes...
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    Okay so I just did a compression test with the engine warmed up. The results were 180 across all 6 cylinders.
  9. R

    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    Sorry about yesterday I was having a bad day I will do a compression test today or tomorrow
  10. R

    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    fuck this forum i can't say a thing on here without being flamed the supra crowd seems like a bunch of know it all assholes anyways. There has not been one thing posted that has been helpful in the slightest bit so don't tell me about my experiences. I don't have a full fuel pressure kit and I...
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    Well installed a new fuel pump, redid all turbo gaskets seals etc, and the intake side aswell readjusted wastegate checked intercooler lines,fixed all oil leaks,tried a manufactured AFM and many other ones.....recalibrated the TPS checked and replaced all vacuum lines and yet the car bogs when...
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    Did a fuel pressure test. Tested fine at idle....but when you step on the gas hard the pressure was dropping from 35-40 to 10 psi. I changed out the pump haven't yet put the tank back in I figured I would change the fuel filter and re do the differential.....and then........the two front diff...
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    I am upgrading to a walbro 255 anyway so why not kill 2 birds with one stone? I'm pretty sure i know whats wrong with the car now anyways it has a afm sensor ending in 42011 and it requires a 42020.
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    Thats kinda off topic. i have 2years experience in automotive and get help from a fully licensed mechanic. Why would I pay a shop if I am capable of doing it myself.
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    stock injectors the car has the wrong black box i just ordered the proper one ending in 42020 mine are all 42011 and 42010. Mines an 89 it takes a 42020 guy before me had the wrong afm see if it does the trick
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    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    I already have a walbro 255 and because I don't have a proper tool to tap into the fuel system and Toyota doesn't sell the cold start injector banjo bolt anymore so i can't make a tool. I can't buy this https://actron.com/content/banjo-bolt-m1215 because I live in Canada and they don't give the...
  17. R

    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    it did this before i re calibrated the tps. so anoyying no codes....I'm thinking i am gonna change the fuel pump
  18. R

    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    The TPS was taken off and put back on right it passed all tests by the book.
  19. R

    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    10 degrees before tdc
  20. R

    89 Supra rebuild help please won't rev past 3,000 Slow revs.

    I just checked the cams position it's matching up all marks line up at TDC. Bought a lexus body and AFM black box today tried installing JUST the black box and still won't rev past 2500-3000.
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