zr2 jimmy codes pulled before purchase
Moderator
Joined: Oct 2014
Posts: 4,338
From: North Central Indiana
Sold my red blazer, been driving this thing for the past 2 weeks.
Replaced fuel filter with a wix model
Hard start when cold - sounds like its about to stall out (leaking gas in the plenum?) for the first minute. After that it idles nice
Fuel trims are all over the place when I’m driving,
nowhere close to 0. 15+ On all readouts
MAF code (cleaned MAF - no help)
Throttle response can be nowhere to be found when I need it. Lot of lag sometimes, but when it works it works.
Decent mpg.
I’m going to start looking for either a vacuum leak or try and diagnose the fuel pressure regulator. Anyone have anything different to suggest? Its a 2005 w 160,000km
Replaced fuel filter with a wix model
Hard start when cold - sounds like its about to stall out (leaking gas in the plenum?) for the first minute. After that it idles nice
Fuel trims are all over the place when I’m driving,
nowhere close to 0. 15+ On all readouts
MAF code (cleaned MAF - no help)
Throttle response can be nowhere to be found when I need it. Lot of lag sometimes, but when it works it works.
Decent mpg.
I’m going to start looking for either a vacuum leak or try and diagnose the fuel pressure regulator. Anyone have anything different to suggest? Its a 2005 w 160,000km
Thread Starter
|
New Member
Joined: Jul 2018
Posts: 61
From: BC, Canada
Thank you for the advice. Thats what I’m trying to do here. Give symptoms and get a diagnosis.
Moderator
Joined: Oct 2014
Posts: 4,338
From: North Central Indiana
A lot of people start by cleaning the MAF sensor. Just don't jump directly to replacement without doing the diagnosis.
Last edited by LesMyer; Jul 14, 2019 at 12:01 AM.
Thread
Thread Starter
Forum
Replies
Last Post
NeoBlazin
2nd Generation S-series (1995-2005) Tech
1
Aug 21, 2019 03:10 PM
GreenBlazer2002
Engine & Transmission
9
Oct 20, 2017 01:32 PM
brendan127
Sights N Sounds
32
Feb 1, 2012 11:46 AM