po171,po174
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1st Gear
Joined: Nov 2006
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po171,po174
70,000 miles. Replaced plugs, wires,ect,tps, all O2 sensors. Generic OBD II Fires off PO171 & PO174. I cannot get a in depth analysis from this scan tool.
The truck's performance increased significantly with the tune up. Yet it still has a case of the original symptoms; loss of power upon start up, Misfire when throttle engaged during warm up, loss of acceleration. Any comments would be helpful. Thanks!!
The truck's performance increased significantly with the tune up. Yet it still has a case of the original symptoms; loss of power upon start up, Misfire when throttle engaged during warm up, loss of acceleration. Any comments would be helpful. Thanks!!
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Joined: Apr 2006
Posts: 25,707
Likes: 107
From: Denver, Colorado
RE: po171,po174
ORIGINAL: LandRoverq
70,000 miles. Replaced plugs, wires,ect,tps, all O2 sensors. Generic OBD II Fires off PO171 & PO174. I cannot get a in depth analysis from this scan tool.
The truck's performance increased significantly with the tune up. Yet it still has a case of the original symptoms; loss of power upon start up, Misfire when throttle engaged during warm up, loss of acceleration. Any comments would be helpful. Thanks!!
70,000 miles. Replaced plugs, wires,ect,tps, all O2 sensors. Generic OBD II Fires off PO171 & PO174. I cannot get a in depth analysis from this scan tool.
The truck's performance increased significantly with the tune up. Yet it still has a case of the original symptoms; loss of power upon start up, Misfire when throttle engaged during warm up, loss of acceleration. Any comments would be helpful. Thanks!!
MAF is a possibility so is excess carbon when it comes to a misfire as well as dirty or failing fuel injectors or low fuel pressure, have you replace the fuel filter???
Mike
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