Question about Cars & Trucks
2004 Isuzu Rodeo 2WD 3.5L V6 DTC P1239 present. Replaced the following regarding the above DTC P1239. - Replaced Electronic Throttle Body - Replaced High Fuel Pressure Sensor (Under Intake Manifold) - Replaced Low Fuel Pressure Sensor (Fuel line near Transmission Side) - Replaced Fuel Pump Unit - Replaced Mass Air Flow Sensor - Replaced O2 Sensor Bank #1 Sensor #1 - Replaced O2 Sensor Bank #2 Sensor #2 Smoke Check with a Snap On Smoke machine for any type of vac leaks, no leaks present. At this point not sure what to look towards to. All connections from PCM to each sensor shows within spec resistance. When the DTC P1239 codes pops up, CEL comes on and there is a "Reduce Power" Light that shows up on the Gauge Cluster as well. Any help or directions would be greatly appreciated. Thanks
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Posted on Jan 02, 2017
small emissions valve with one electrical connnector and three to four vacume lines located near your egr valve. this is a comon fault on fords emmissions system.
Posted on Aug 15, 2009
Sounds like a vacumn leak. Gasket under intake plenum may be leaking. Be sure the pcv valve has the o-ring around it in the correct place also as it will set a code.
Posted on Mar 11, 2010
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