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HELP!!!

6

68fordman

CEG'er
Joined
Nov 13, 2007
Messages
407
Location
Waxahachie, TX
my car is way past due on inspection and i need some help......

97 mystake 2.5 mtx 107k

running lean bank 1 & 2....i've put on new..
1. intake gaskets
2. O2 sensors
3. vacuum hoses

still running lean...cleared the codes and everything after each....still lean... WTF is my problem...fuel pressure regulator or what or is it just something screwed up thats and easy fix....any help is greatly appreciated
 
Post the exact CEL codes. Check for vacuum leak (broken hoses, loose air filter clamps, etc.).
 
68fordman said:
i cleaned the MAF when i optimized TB.....the CEL codes as P0171 and P0174
Click to expand...
You have a massive vacuum leak. Check the clamps around the TB first. Then check other hoses, (near UIM, EGR, Brake booster, etc.)
 
Yeah its likely a big vac leak somewhere...or a bunch of small ones in mutiple hoses.

Not sure if its common on the duratec but in my Windstar, the lower plenum bolt seals degrade and create a huge vac leak and throw lean codes.
replace the bolts/seals and all is good again.
 
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