Injectors and lean codes do they mix?
10-02-2013, 11:27 AM
#1
Drifting
Thread Starter
Injectors and lean codes do they mix?
If I were to get a lean code for bank 1 and clear that code and then have same code for bank 1&2, clear that code and get a single bank 1 code lean again,
Here is it question.... Could a single or multiple injectors be fouled up (dirty) or fuel not being atomized or sprayed incorrectly.
Thanks
David
Po171/po174 codes. 93 tier 1 gas always used
Here is it question.... Could a single or multiple injectors be fouled up (dirty) or fuel not being atomized or sprayed incorrectly.
Thanks
David
Po171/po174 codes. 93 tier 1 gas always used
10-02-2013, 11:52 AM
#2
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Location: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
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Possible things to check are:
Visually/physically inspect the following items: (check these first)
Vacuum hoses for splits, kinks, and proper connections.
Crankcase ventilation valve and/or system for leaks.
Contaminated fuel.
PCM and sensor grounds are clean, tight and in the proper locations.
Air induction system after MAF sensor for vacuum leaks.
Engine mechanical failure.
Elmer
Visually/physically inspect the following items: (check these first)
Vacuum hoses for splits, kinks, and proper connections.
Crankcase ventilation valve and/or system for leaks.
Contaminated fuel.
PCM and sensor grounds are clean, tight and in the proper locations.
Air induction system after MAF sensor for vacuum leaks.
Engine mechanical failure.
Elmer
10-02-2013, 12:05 PM
#3
Le Mans Master
Had the same issue a year ago....ended up being an exhaust leak at the header collector gasket causing outside air be monitored by 02 sensor. Causing a lean bank 1 code.
10-02-2013, 12:09 PM
#4
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It'd be nice to know if there are any mods on the car.
Elmer
Elmer
10-02-2013, 01:08 PM
#5
Drifting
Thread Starter
Kooks LT HF cats zo6 muff, Fast ported 102 VRCAI ECS TUNE
Last edited by theVcar; 10-02-2013 at 01:10 PM.
10-02-2013, 02:18 PM
#6
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Member Since: Jun 2001
Location: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
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10-13-2013, 12:13 AM
#7
Drifting
Thread Starter
Well, it's back. Even after a GM injector cleaner service. My evasive code P0174 is back. I will double check bolts around scavenger section to make sure tight. Any other ideas?
10-13-2013, 07:25 PM
#8
Drifting
IMHO injector cleaner is just about worthless. May be worth pulling injectors and having them cleaned and flow mapped.
Just did mine with 20K and they picked up between 1 and 4% flow, also a good time to put the fat ones in the back.
10-13-2013, 10:32 PM
#10
Drifting
Thread Starter
10-14-2013, 07:43 PM
#12
Melting Slicks
go to any auto parts store and ask for MASS CLEANER make sure that it says that on the label. check all the bolts on the manifold. you may still have to SMOKE the intake and check for leaks. a seal on the manifold may have misshapen.
10-14-2013, 08:11 PM
#13
Drifting
Thread Starter
10-15-2013, 04:10 PM
#14
Drifting
Thread Starter
