Engine codes

[DanG]

I'd go with headers- I don't think boneyards can sell the manifolds because they contain catalysts- But you may find one that will. Buying new is just painful.

Disconnect the Y-pipe, grab onto the 6 13mm bolts that hold the manifold on, and pull it out. If B1, then you'll also have to disconnect the EGR sample tube. DO NOT pre-soak any of the bolts with penetrant- You want the studs to come out of the heads- Not the nuts off the studs. However, if B1, then soak the EGR sample tube in penetrant.

[12three45]

Hey Dan, I finally got off my ass and changed out the DPFE, now I am getting P1401, DPFE high voltage detected. Did I do something wrong when I installed the new unit?

Codes that were in the engine before were P0420 and P0401.

Don't know if this makes a difference, but my replacement DPFE was the metal one that was exactly like the stock unit and not the plastic one I thought replaced it.

Andy

[DanG]

I don't think so... There's only 2 silicone rubber tubes and a single wiring connector. Sounds like a bad DPFE? Pull battery power (turn the headlights on to make sure all power is drained from the system) for about 10 minutes and see what returns. May just need to "recalibrate" itself.

[12three45]

Ok, will do, but I erased the code from the PCM. Wouldn't that do the same thing?

Andy

[DanG]

That would clear the code, but not the adaptive tables in the ECU. With a new sensor, I'm leaning towards recommendinng that you'd want to re-baseline the ECU and the sensors (so the ECU would get a fresh "boot" and get fresh data from all sensors). Easiest way to do that is pull power or disconnect the ECU harness for ~10 minutes.

[12three45]

Ok, I think I might have killed my car. While the batter cable was disconnected, I decided to clean the MAF sensor. The MAF housing didn;t seem to want to come off the intake tubing so I sprayed electrosolve contact cleaner in the intake at the sensors and thought that the cleaner with evaporate and everything inside the intake would be ok. Now my car will not combust. I starts for about 1-2 seconds and shuts off. This stuff is flammablew so it should burn. Did I mess up some other sensors in the intake? I took the filter off fo the night and let it air out. Hopefully everything works tomorrow, crossing fingers.

EDIT: I found out that my MAF sensor is screwed. I disconnected the MAF and the car started. Do you think this is a hardbreak and i have to replace or I can do something to fix it? How do I replace it? The sensor and the housing or just the sensor? I just cleaned the MAF from the Lexus this weekend and everything was fine. The onlything was the sensor came out of the housing for me to clean. The cougar did not.

Andy

[DanG]

Eek. You may have schmoked the sensor. You can get one out of any boneyard (one from any Contour/Cougar that matches your fuel system type). Of course, there's always Car-Part.com--Used Auto Parts Market ...

[12three45]

Dan, does the senosr come out of the housing to be replaced or do I have the replace the whole thing?

Andy

[CougarBear]

on a sidenote - there are no haynes/chilton manuals for the cougar...

and i've never seen a metal replacement dpfe sensor - sure you didn't get someone's repacked oe sensor? - but hey as long as it's working

[12three45]

I have a Haynes manual, but it is still confusing most of the time.

Well I didn't think they made them anymore either. Don't know if it is working either since I have not run it after ECU reset. Another coug owner is selling his stock MAF so will have to wait a few days.

When I kept getting DTC codes after the install and before the ECU reset, I really thought someone returned their old unit to autozone. We'll see.