P1071 and P1074 Bank one and three.
09-17-2012, 02:24 PM
#3
Senior Member
This indicates a lean fuel mix. Usually associated with a vacuum leak (too much air getting in, and PCM compensates by throwing more fuel in). How is your engine idle? RPM higher than usual? Any sputtering at start-up? Might just need MAF sensor cleaned (with dedicated cleaner). Weak spark might give you those. Any misfirings (and other codes, active or pending)?
09-17-2012, 03:01 PM
#4
Member
Thread Starter
It is a 5.4. the engine idles pretty smooth maybe 700 RPM's give or take no sputtering at start up, what is the correct MAF sensor cleaner? Those are the only codes pending and active, if you reset it it will come on fairly quick.
09-17-2012, 05:36 PM
#5
Senior Member
Go to an auto parts store, where there are specific cleaners for throttle body, and Mass Airflow Sensor (don't use Carb cleaner, as the solvents are too harsh). Do you have a cold air intake installed? Over time, from what I read here, and what I've encountered, is that these also can throw lean codes, especially with some aftermarket exhausts.
09-19-2012, 04:43 PM
#7
Member
Thread Starter
Just and update for everyone. I cleaned my MAF sensor and drove it around a little yesterday I hadent reset check engine light yet, then I got my EDGE Evo CS in the mail today plugged it in and it said there were no codes? And now the check engine light is off and I drove it a while?