Anyone in Chattanooga area know Ford EFI?

[1998rollover]

Going to be there all next week for the Hudson meet at Chattanooga choo choo hotel.

I put new converters, new o2 sensors, new tps, new injectors, new coils, spark plugs, plug wires.

It still keeps insisting the upstream sensors are bad then pours gas through it so it runs crappy and gets 9 mpg! But other times all is fine or it only sets 0175 code. I brought my cheap reader to clear the codes every stop.

WTH needs to be done to make the damn thing work properly?

It was running better on the no ethanol gas, until I filled up this side of South Haven, KS. Now it's running like it was on the crap WY has for gas.

Headed for Joplin, MO right now, then on across the state. My cell phone 208550 one five 3 five

Edit. Dunno if the heat an AC only blowing out the defrost would have something to do with this. Vacuum line off or bad door actuator under dash causing vacuum leak?

 

[DevinOB]

What year is your vehicle? alot of the 4.0L v6s have a rubber vacuum elbow on the left side rear of the engine (drivers side) just behind the intake manifold that sometimes will crack and fall apart that could cause a vacuum leak. you could also spray around with brake clean with the engine idling and if the rpms pick up in a certain area then it likely has a vacuum leak in that spot.

 

[1998rollover]

It's a 2002 with a 1998 V8 AWD drivetrain transplant from a Mountaineer. I'm back home in Weiser, Idaho now.

 

[DevinOB]

ok thanks knowing the engine size and year helps alot. p0175 is a running to rich conditon I believe. Have you checked fuel pressure yet? You could have a bad fuel pressure regulator. My other item to suspect would be a bad or dirty MAF sensor.

 

[Turdle]

You drove right by me.

 

[1998rollover]

So far it's had all these things replaced.

Injectors
Coils
Spark Plugs
Plug wires
All four oxygen sensors
Catalytic converters
Fuel pressure regulator
PCV Valve
Fuel filter
Fuel pump
New upper intake, throttle body and EGR gaskets when injectors, regulator and PCV were changed. Also made sure all the vacuum hoses were on.

I've ordered a PCM from Flagship One, supposed to be updated with the last software release and programmed with the old Mountaineer VIN so it'll work with the PATS.

If that doesn't work, I got the instrument cluster from the Mountaineer. I saw one or two Sport Trac or Explorer Sport V8 swap threads where the truck had crazy problems until they installed an Explorer instrument cluster. WTH would *that* have any effect???

If I can ever get it to quit pouring too much fuel in, then I need to figure out why it keeps popping the 0500 VSS error code. There *cannot be* a problem with the VSS. It is new and the speedometer works fine. It has only the one sensor on the rear axle. Late 1998 V8 AWD only used the one sensor. Problem 3 is the brand new ABS unit. With my VCX Nano and IDS I get an acceleration switch circuit failure code, but searches for how to fix it have been fruitless. If it's the g-sensor gone bad, WTH do I get a replacement? Some times I can feel a slight rumble in the brake pedal on dry roads, as though it's running the ABS pump. ABS light is off after starting but comes on with first pedal press.

Seems as though the late 1998 Explorer/Mountaineer is the most troublesome donor for a V8 swap. I have an early 98 (actually built in 97) but had the late one used as the donor because it had been rolled and rebuilt. Didn't help that the guy I had do the swap was a dope addict and a thief and a lousy mechanic, but nobody told me that *beforehand*. I sure found out why he *used to work* for most of the car dealers. I even gave him an old laptop to use for looking up stuff here and on other places about these swaps, but I think he went right out and traded it for beer or dope.

Dad and I were going to do this swap by pulling out the dashes and swapping *everything* from the Mountaineer, none of this shotgun marriage of 1998 and 2002 business. But he caught a bacterial pneumonia which caused atrial fibrillation and he's still on the mend from both. (He'll be 78 this fall.)