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chickenhouse
Enthusiast
Aug 6, 2011, 3:26 PM
Post #1 of 6
(3388 views)
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5.3 Z71 codes are lean on bank 1 and bank 2. Codes are 171 & 174. Runs along fine, losses power and quits. Wait 10 or 15 mins, starts and runs fine again.
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chickenhouse
Enthusiast
Aug 6, 2011, 3:55 PM
Post #2 of 6
(3383 views)
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Fuel pressure runs at 46 to 48 psi at idle.
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Discretesignals
Ultimate Carjunky
/ Moderator
Aug 6, 2011, 4:19 PM
Post #3 of 6
(3380 views)
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What is fuel pressure when it stalls?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Hammer Time
Ultimate Carjunky
/ Moderator
Aug 6, 2011, 4:35 PM
Post #4 of 6
(3372 views)
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That fuel pressure is too low CH.
If it's a "T" motor, it should be 55-62
If it's a Vin "Z", it should be 48 - 54 with no margin for error
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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chickenhouse
Enthusiast
Aug 6, 2011, 4:58 PM
Post #5 of 6
(3368 views)
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Pretty much what we were thinking when pressure test came back low. I thought 50 -55 would have been good. Thanks guys!
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Hammer Time
Ultimate Carjunky
/ Moderator
Aug 6, 2011, 5:03 PM
Post #6 of 6
(3366 views)
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Even that would be too low if it is a "T" motor.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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