SOURCE: engine light and stalling on aceleration, hooked
oh dear, its still that mass air flow sensor playing up, there very easy to damage just one tuch will do it, try another one but be very jentel when you fit it
SOURCE: xg350 2004 misses when engine switches from set
I read of a similar problem and the person had the chip in the computer replaced. That was causing the miss in his 2004. He was from Florida and a mechanic in an AAmco found the problem
Testimonial: "It's another thing to try, thanks"
SOURCE: Could a faulty alternator cause problems with the
no its not likely, but if your maf is bad take it off and clean it with maf sensor spray or electrical cleaner. be careful not to touch inside of sensor. also make sure air filter is free of dirt and dust, this will contaminate maf sensor if dirty. if cleaning does not work. put on a known good one. clean sensor first.
SOURCE: 96 Chevy K2500. Approx 170,000 miles Auto trans
Backfires are usually out the tail pipe on deceleration and can
be caused by several things. First is the most common and that is an exhaust
leak close to the front of the exhaust system. Other causes are ignition timing
off. ------------ The backfire,bucking,sputtering,misfiring etc etc is most likely due to the gas still pumping into vehicle cylinder when the engine cuts out, then is overloaded with gas when the engine kicks back in. It happens due to a rich mixture of fuel and it's bad for your plugs (ie it fouls them) and catalytic converters over time. That unburnt fuel ignites in your exhaust and you hear the backfire, sputtering. So get the compression test done, get the fuel pressure tested and this will point towards the problem. --------- Thanks.Helpmech.
An oil leak at a breather pipe will not cause a backfire although an engine
problem can cause a backfire inside the engine that can blow breather pipes off
which then can be an oil leak. To be safe, you should have a compression test
run on the engine to eliminate that one as a cause.
You can also experience a popping sound due to gas flow through an exhaust. As you change gears fast gas flow is mixed with slow gas flow and a pop occurs due to the reverberations.---------
Unlikely but possible,I would look at the throttle control body first as it sounds like a fuelling problem alternatively old filters or dirt in tank could have same result
The ECM receives a signal from the Mass Air Flow sensor depending on the amount of air entering the engine. The ECM uses information from this sensor to help calculate fuel delivery and spark timing.
Fault Code Description
Symptoms
Common Problems Faulty Mass Air Flow sensor,Broken wire to Mass Air Flow sensor,Dirty sensing element in Mass Air Flow sensor
P0174 - Fuel Injection System Too Lean Bank 2
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Possible causes
- Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection
Possible solution
Dirty air filter of faulty air flow sensor are common causes of the problem.
Bottom line possible defective Mass airflow sensor and or O2 sensor in cylinder bank number two.
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