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Thread: Running very rich
12-10-2011, 04:08 PM #1
Running very rich
hey guys, my 94 is running really rich., I think it is, i may be wrong, but here are the 'symptons'
-sounds like a v8 powered leaf blower
-smells like gas in the air when i park it and get out
-runs very cool in all seasons, the engine never peaks over 125 degrees, even going 60+mph
-its kind of a gas guzzler, even with no lift, but thats usually normal
is there any way to make it run less rich? im a n00b when it comes to diagnosing this issue. but im mainly trying to get rid of the gas smell when i get out of it.1994 Silverado Z71 1500 4x4
BF Goodrich 31in All-Terrain Tires
Blazer Fog lights
Removed front splash guard
Tow hook Chains
Locking gas cap
REFLEXXION Rear bumper (Painted black)
Diamond metal bed caps & Truck Box
Painted engine bay
Blistein Shock absorbers
BOSS bluetooth LCD Radio
Platinum trucker CB antenna
Midland 5001z CB Radio
XO backup camera
X-press Remote entry-alarm
CUSTOM metal gas & brake pedal
Highland fold-away bed cleats
12-10-2011, 04:21 PM #2
Check the thermostat.. that it has a 195 degree... If engine is not getting to running temp ecm still adding fuel for warm up.
Temp sensor not giving right signal ..to ecm Do you have a cel . maybe 02 sensor.
12-10-2011, 08:06 PM #3
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If your never getting to operating temperature, then the vehicle is staying in open loop which as stated before will continue to feed gas even if not needed.
12-11-2011, 07:22 AM #4
So Shadow if you arent' getting up to that temp at a minimum you will run rich.
Like the others have said, check your thermostat and temp sensor.
When you turn the truck off after a long run, if you open the hood and check the radiator hoses, are they hot and firm as if under pressure? If not would be a indication of a stuck open thermostat.
12-12-2011, 09:59 PM #5
Thanks for the replies all. It has always ran this cool, me and my dad were driving a few months ago when the thermostat crapped out on us and the engine was running around 300 degrees. We replaced the thermostat with a race thermostat that is real time temp display, still never peaks over 120. One thing i havent checked is the temp sensor, which i will do tommorow and let yall know. Thanks again for the help!
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