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03TRAILBLAZERP0171 LEAN NO UPPERENDPOWER
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BPAUTOSERVICE
New User
May 23, 2011, 4:32 PM
Post #1 of 2
(1239 views)
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03TRAILBLAZERP0171 LEAN NO UPPERENDPOWER
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HELLO GUYS AND GALS
FIRST TIME FOR ME.
03 CHEVY TRAILBLAZER WITH 4.2 100K.
STARTS UP AND RUNS GOOD. BUT OUT ON HIWAY IT WON'T GO ABOVE 55 MPH AND GOING UP A HILL SLOWS DOWN TO 20 MPH WITH MY FOOT ON THE FLOOR. RPMS MAX AT 4000 RPM.
CHECKED WITH MODIS FOUND THE GAS PEDAL WILL GO TO 100% ON THE FLOOR. BUT THE THROTTLE STOPS AT 30% AND WILL NOT GO ANY HIGHER.
ALSO 1 CODE P0171 BANK 1 LEAN--- IT HAS ONLY 1 BANK.
I SAW WHERE SUPERDAVE HAD SAME PROBLEM LAST YEAR BUT NO ENDING TO THE STORY. I DON'T A TECH2 BUT DO HAVE THAT MODIS. CAN ANYONE POINT ME IN THE RIGHT DIRECTION.
GOTTA GO BUT I WILL CHECK IN LATER. GOING TO DINNER NOT DONE TONIGHT YET.
THANKS TAKE EASY ON ME ON MY FIRST POST.
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Hammer Time
Ultimate Carjunky
/ Moderator
May 23, 2011, 4:43 PM
Post #2 of 2
(1236 views)
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Re: 03TRAILBLAZERP0171 LEAN NO UPPERENDPOWER
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What's your fuel pressure? Spec is 48 to 54
If you have a "drive by wire" problem, you would get a "reduced Engine Power" warning on the dash.
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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.
(This post was edited by Hammer Time on May 23, 2011, 4:46 PM)
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