...po171 and po174 on 1996 ford pickup cab 150 if motor is running lean - fuel pump or fuel filter could be problem - if oxygen sensors are coated over - they can be cleaned - replaced if defective - ...
...po171 and po174 replaced plenum gaskets and isolator bolts,checked vacuum hoses,egr checks good cleaned maf still get 171 and 174 codes and the engine idles and runs fine. Your still lean on both ...
po171, po174 Those codes are for "lean" fuel mixture conditions. Look for vacuum hoses or intake vacuum leaks. I asume that this is a 4.6 or 5.4 liter engine in which case there may be a problem with ...
PO171 & PO174 check engine light on / code are PO171 & PO174 .How to fix the problem? You should be replacing all upstream oxygen sensors, the ones at the inlet or pipe before the converter,on
...po174- Heated oxygen sensor switching slow right side po171-Heatd oxygen sensor unable to switch right side. C hange out 02 sensor once you do that if engine light doest turn off you may need to take ...
Question about Ford F-150
po171 and po174 oxygen sensors for 2002 Chevrolet Silverado 2500hd w/6.0 litre engine - truck has 12 - how do I find out codes? your truck should only have 4 o2 sensors two upstream and two down ...
Question about Ford F-150
...CHECK ENGINE LIGHT HAS OMEON AD THE CODE READS PO171 AND PO174 SYSTEM TOO LEAN IN BANKS 1 AND 2. WHAT COULD BE THE POSSIBLE PROLEMS. HOW TO FIX THE LEAN MIX TO THE ENGINE? Most likely a Oxygen
Question about Ford F-150
...po171, po174, p1131 &p1151. I fuel pressure (ok), also vacuum is good for a while , when start running bad the vacuum will drop from 19ins to 15ins Vacuum drops --you got leaks The codes are ...
...po171, po174, 171 oxygen sensor bank 1 too lean, 174 oxygen sensor bank 2 too lean. 430 catalyst system eff. below. 443 Emission Control System Purge Control Valve Circuit. Could po430 be set by bank ...
...po171 and po174 it die out when I'm at a red light but cranks back up missing bad when it warms up P0171 - Fuel Injection System Too Lean Bank 1 Possible Causes: - Intake air leaks - Front Heated ...
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