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HybridZ

cant get it to boost.


fl327

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this is very weird, and ive tried just about everything to cure this problem, im ripping my hair out over it im really confused.

ok, i have the car will idle fine with a tiny surge-but it will idle forever just like normal, under load, it drives ok as well, but as soon as i hit the gas hard it will want to die out, and its not like a vaccum leak-it feels more like the computer is cutting me out like a rev limiter feeling. at a free rev it will also seem like a rev limiter when i try to get it to go to 0 hg.

things ive checked or replaced

1. alternator and battery( coincidentally going bad, wouldnt charge)

2. TPS(might be it, but ive put two different ones on and had the same problem.)

3. vaccum is at a hair past 22hg at idle

4. all hoses are snug, no vaccum leaks.

5. reset ecu and cleaned all wire connections

6. checked all efi and body grounds extensively

7. adjusted timing

 

now there is only a couple things i can think of that would have caused it and i really dont know if it would cause such a problem. the clamp on the end of my afm is kind of bent, but im pretty sure it makes a good seal around the back of the afm. also, maybe the timing is still too advanced and when it gets to zero the computer over compensates for too much timing???? hope to get this thing boosting, these gremlins are killing me. thanx folks.

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car was just sitting outside for a little while

didnt drive it for almost a month, hasnt been the same since. i cleaned connectors again, it runs better now, my head temp sensor looks pretty filthy-could that be it, i always thought the car would just run rich if connector got sloppy. the car feels great, but then youll hit boost and its like the computer slapping me in the face with a NO!

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Are you sure the pipe to the turbo going forward with pressurised air is connected good? I had this also happen once the pipe looked like it was on good but, every time I got into boost it would lift off some and lose any pressure the car ofcourse fell on it's face after that. I've evn had connectors that were fine while with vaccum but, with boost leaked big time.

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hey len do you have an air fuel gauge?If so look what it says if not then use a volt meter and check your o2 sensor reading.If you can also check to see if your wires from the cylinder head temp sense are not grounded.You can test this with the ohms part of the volt meter and see if it goes to short.An easy thing you could try is unhooking your head temp sense and see if it runs pig rich if so then your sensor is bad and shorting out.IF not and it still does that it is more than likely a wire shorted to ground somewhere.BumbleZ had the same prob and i accidently did it too when i had a resistor in my head temp sensor wire and it touched ground my car would run good but as soon as i got even close to boost it would just die.Hopefully this helps

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thanx guys, i checked everything once again, made sure no holes in connectors, all grounds secure, and finally got down to running a voltimeter to the tps

and adjusted that bad boy-we back on line once again buddies- now i have this new problem-it wont hook in third!!!!!!!!

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