fuel pressure test for TPI
09-16-2010, 02:02 PM
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Car: 88 Iroc Z, 00 SS
Engine: 5.7 HSR, 5.7 LS1
Transmission: 700r4, T56
Axle/Gears: 3.23, 3.42
fuel pressure test for TPI
to check the fuel pressure in a TPI engine, you just need to disconnect the line running to the fuel rail,and connect the gauge in place don't you?
09-16-2010, 02:06 PM
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Re: fuel pressure test for TPI
09-16-2010, 02:12 PM
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Car: 88 Iroc Z, 00 SS
Engine: 5.7 HSR, 5.7 LS1
Transmission: 700r4, T56
Axle/Gears: 3.23, 3.42
Re: fuel pressure test for TPI
ok, yeah I just went out to my car and found it, its on the passenger side near the back, thanks for the quick reply
06-11-2014, 02:26 PM
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Car: 88 Iroc Z, 00 SS
Engine: 5.7 HSR, 5.7 LS1
Transmission: 700r4, T56
Axle/Gears: 3.23, 3.42
Re: fuel pressure test for TPI
wow this is old, the fuel enters the rail first. The regulator is used to create a restriction at the return side of the rail and this makes sure that there is adequate fuel pressure throughout the entire rail
11-13-2016, 12:10 AM
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Car: 1991 Camaro Z28
Engine: 5.0 TPI
Transmission: T5
Re: fuel pressure test for TPI
This might help:
https://www.youtube.com/watch?v=3Fsj...PZU8ENH-XNB3q1
https://www.youtube.com/watch?v=3Fsj...PZU8ENH-XNB3q1
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11-15-2016, 02:10 AM
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Car: 1989 IROC-Z
Engine: 5.7L V8
Re: fuel pressure test for TPI
I have simialar symptoms on my 91 tpi 5.0, its struggles to start like yours then eventually after about 3 tries it turn on but it has a rough idle and wants to bog out, as soon as i step on the gas pedal it shuts off. I also think its my fuel pump which ima change next weekend hopefully it gets my car on the road. Thanks for posting the video
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