2000 F250 EGR Valve and generic OBD II Codes

Russpf · **Joined:** Wed Jul 04, 2007 10:17 am **Posts:** 8

2000 Ford F250 Super Duty - 5.4 L - EFI - 2WD

I had misfire codes that stopped once I replaced injectors/plugs/coils/O2 Sensor. The engine still runs poorly, seemingly a misfire. I went to buy an EGR valve and was told there was not one needed for that model. I do not see one on the engine. Is that right?

Also, my monitor reads as follows:
Monitrs
2 inc
o2 sensr
o2 htr
3 ready
misfire
fuel
comp

My book doesn't mention codes like this.

Compression test / Cat. Converter / ???

Any input?

Thanks

Sponsored Links · **Joined:** 29 Jun 2004 08:12 pm **Posts:** N/A

jeff compton · **Posted:** Wed Jul 04, 2007 11:35 am

so what codes are there?

Russpf · **Joined:** Wed Jul 04, 2007 10:17 am **Posts:** 8

right now, no codes. The misfire codes (P0301, 0302, 0305) didn't come back after I did the component replacement. But what does does "Misfire", "fuel", and "comp" mean?

jeff compton · **Posted:** Wed Jul 04, 2007 3:35 pm

they're monitors that haven't completed yet! it needs a complete drive cycle with no faults in those systems before they'll come to ready status,
fuel would likely mean fuel trim, misfire obviously means the misfire monitor and comp maybe comprehensive? So if the truck is still running poorly then you need code #'s or scan tool data to determine why? Has the MAF been checked or cleanned? If it's got a K&N style filter on it then your MAf might be dirty!

Russpf · **Joined:** Wed Jul 04, 2007 10:17 am **Posts:** 8

I'll check. Thanks

jeff compton · **Posted:** Thu Jul 05, 2007 7:25 am

Mohawkmtrs · **Posted:** Thu Jul 05, 2007 8:00 am

I re-read the original post and I understand it to be the O2 sensr and O2 heater monitors are incomplete while the misfire, fuel and comp are ready.

It may be possible that the PCM needs time to relearn the new O2s.

jeff compton · **Posted:** Thu Jul 05, 2007 10:54 am

maybe! I wonder if there's blown fuse for the 02 heaters?

Russpf · **Joined:** Wed Jul 04, 2007 10:17 am **Posts:** 8

I checked the MAF. It's spotless. I'm going to check the fuses in the morning. How long is a drive cycle. I've done over 600 miles since I did the injectors and the O2 sensor

jeff compton · **Posted:** Fri Jul 06, 2007 6:24 am

600 miles is likely more then long enough!

Russpf · **Joined:** Wed Jul 04, 2007 10:17 am **Posts:** 8

All the fuses are intact, although none is distinctly called out as O2 heater.

I still do not see an EGR valve. I'm going to take the throttle components off the manifold tonight and see if I can find the EGR.

jeff compton · **Posted:** Fri Jul 06, 2007 3:15 pm

if you call the ford dealers parts dept with your vin # they should be able to tell you if there is one and where it is!

Russpf · **Joined:** Wed Jul 04, 2007 10:17 am **Posts:** 8

I'll go the dealer this morning. Also now I have a misfire code on cyl. 5 (p0305) That has a new coil pack / injector / plug.

jeff compton · **Posted:** Sat Jul 07, 2007 6:20 am

keep us postted

Russpf · **Joined:** Wed Jul 04, 2007 10:17 am **Posts:** 8

There is no EGR on that model, per the Ford Parts dealer. Saves me $100 but I was hoping that would be an easy fix. I erased the 0305 code and will drive some more. I was thinking of a compression test or a catalytic converter.

2000 F250 EGR Valve and generic OBD II Codes

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