G'day Fellas,

One of the mates has got an F250XL with the MWM Sprint 4.2L donk in it.

I'm thinking of hookin' up the AE to the OBD connection and check it out for him.

Has anybody used an AE on this arrangement?

Cheers,
Reg

 

Probably someone in South America. You might be the first one in Australia Reg!

 

The thing with the 4.2, is it doesn't have many sensors. Engine is completely mechanical, the only real electronics are the dash cluster, the rear abs and interior A/C. I can't even remember what PIDS were available thru OBDII, but would be curious what you find.

Some of the Brazilians really wind up the Injection Pumps on them however:

 

G'day Fellas,

Well I'm aware of the basic design of the 4.2L 6.07 MWM Sprint and it's lack of sensors.
However they are OBD port fitted.
So I was really wanting to see what would show up in way of Diagnostics.

Anyway I hooked it up today and had no luck getting the AE to shake hands with it.
The lights lit up on the AE OBD connecter indicating it was alive.

I tried as many different configurations as I could but to no avail.
I have the Ford Enhanced Bundle so I guess this donk didn't get bundled up in Ford.
I know they where used in earlier Silverados, but I'm sure they were planted into some Ford Transits so expected it to come up??

The mates issue is he has no tacho indication. He has had the dash out and tested ok.
I've been trying to find the RPM sensor location but have had no joy

So if anyone can help with either knowing the sensor position or how to read the OBD port on these trucks, let me me know.

Cheers,
Reg

 

Yeah, IIRC, no diagnostics on them.

Is the rpm sensor not on the injector pump?

 

4.2 is not listed in the Ford Enhanced Bundle , AE works good on my 7.3

 

G'day Fellas,

I did throw the AE over the mates 4.2 Ftruck.
It did not pick any codes as expected. They do have an OBD11 connection port and they do have limited codes that can be picked up with the correct scan tool.

Anyway we did track down the Engine RPM sensor (pick up) for the Tacho on these MWM fitted F250 XL.

I could not see any other connector or wire to the fuel pump area as was the suggested position of the RPM sensor. The only thing on the Bosch fuel pump that is electrical is the 'Fuel Shut Off Solenoid'.

Anyway more searching found a single wire hanging loose off the back of the 'Alternator'.
Plugged it onto the obvious pin (only one without a wire connected). Fired her up and bingo Tacho happily dancing around with the rev changes.
Pinched it tight to make sure it won't shake off under it's own and all is good.

So there ya go, the RPM sensor for the Tacho on these 4.2L 6.07 MWM Sprint F250s is fed off the Alternator.

Cheers,
Reg

 

If you have access to a unlocked Superchip 1705 they are good for pulling codes and that's about it.

 

Just had my local dealer connect up to OBD to pull down DTC's because ESOF won't work properly. There are a whole bunch or codes in there for faults in body wiring, 4wd, instrument cluster, abs, air bag etc.
Re tacho probs- had something similar - tacho started to become a bit erratic - turned out to be worn brushes & sliprings in the alternator.

 

B codes are not to much of a problem, i had some problems with the ESOF system , turned out to be the PVH solenoid, I also used a brake vacuum gun to diagnose this.
CAR Auto Hand Power Brake Line Bleeder Bleeding Pressure Vacuum Pump Tool KIT | eBay