4-Car is very good on gas on highway for its size/weight, but *very crappy* in congested city driving (Boston).
5-It is strong running and smooth idling. When I first acquired it, over the noise of other motorists I thought it stalled on me in traffic, except it was still running - that's how smooth it is. And that was before its first tune-up.
Is there any correlation here? For the life of me, I can't explain the disparity in fuel economy nor the intermittent o2 sensor warnings. The repair garage that overcharged me for the exhaust work wanted to replace ALL FOUR O2 sensors as a remedy for the OBD-II warnings. Before I do that, I wonder if I can kill two birds with one stone by taking a more logical course of action.
I wonder if exhaust is being leaked somewhere forward of the converter. If so, could it explain the audible observation I mentioned in addition to poor mileage/specific OBD-II codes?
I know that there are alot of variables. Sorry for that and thanks for suggestions.
2006-10-17 12:29:25 · 3 answers · asked by moussa_guillaume 1 in Cars & Transportation ➔ Maintenance & Repairs
On almost all Fords, where you get any type of EGR code, it's the DPFE sensor that has failed. Look for a sensor that has a small & larger rubber hose attached to it, connected to the EGR tube, with an electrical connector (Ford base part number 9J460). 9.5 times out of 10 it's this sensor that needs to be replaced. If the hose(s) are blown off the EGR tube, and you hear exhaust, the catalytic converter(s) plugged.
2006-10-17 13:05:18 · answer #1 · answered by Anonymous · 0⤊ 1⤋
The P0430 code is indicative of a failed catalytic converter, I have never seen it any other time, except for when the converter has failed. I would have the converter assembly replaced, either with a used unit or a much more expensive new one. The only O2 sensor I would replace is the bank 1 upstream O2 sensor, which is what the P0133 code indicates. Also, the newer models require a powertrain control module reprogram for the P0133 code, there probably is an update for your PCM that can be done after the O2 sensor is replaced.
2006-10-17 21:41:39 · answer #2 · answered by yugie29 6 · 0⤊ 0⤋
the leak should be repaired first. no o2 sensor will work right if it is reading a leak. if u still get the codes, i would first only replace the sensor that coded. it may have caused the cat code, and the other sensors may be ok. hope this helps.
2006-10-18 01:20:41 · answer #3 · answered by lizardhead 3 · 0⤊ 0⤋