92 e250 5.8 where is the pcm power relay
Thread Starter
|
Member
Joined: Jun 2014
Posts: 73
ALOHA
Hanky, what do you think of this! The van went back to smoking and shifting hard into second. I can't pull any codes. The code reader doesn't blink, not even 11 and using the jumper wire to download codes only produces a steady light on the dash. I called the module remanufacture I sent it to several months ago and I'am waiting for a call from a Tech. The fuse for this circuit is o.k. Could it be a ground? I spent hours on the internet regarding this problem and found nothing at all. I feel bad about this, just want to show you the completed van. As soon as I hear something I'll post. Thanks again!
ALOHA
Jim
Hanky, what do you think of this! The van went back to smoking and shifting hard into second. I can't pull any codes. The code reader doesn't blink, not even 11 and using the jumper wire to download codes only produces a steady light on the dash. I called the module remanufacture I sent it to several months ago and I'am waiting for a call from a Tech. The fuse for this circuit is o.k. Could it be a ground? I spent hours on the internet regarding this problem and found nothing at all. I feel bad about this, just want to show you the completed van. As soon as I hear something I'll post. Thanks again!
ALOHA
Jim
Senior Member
Joined: Jun 2010
Posts: 16,560
I am going to direct you to something I found very useful and know you will also. It is a tool. Made by Thexton Mfg co. The tool is #443, It is cheap and with it you can run the KOEO (key on engine off), KOER (key on engine running) continous codes and best of all utilize the Best thing Ford did in those days called "dynamic test" If you don't get the instructions with the tool I should be able to help. It's a small plastic block for under $25. Great tool for the OBDI system. With this tool the vehicle computer will automatically run a system of checks while the engine is running and provide any codes if any failures are present. Once you have those codes you can go from there.
ALOHA
ALOHA
Senior Member
Joined: Jun 2010
Posts: 16,560
Aloha
I have come up with a few more checks you might try.
Just to touch all the bases, if you unplug each injector and check the resistance across the injector terminals it should read between 13.0-16.0 ohms. Any reading out of that range requires replacing.
The canister purge solenoid may be stuck open and if that is the case it will be constantly purging the canister pulling gasoline vapor into the engine causing an overfuel condition. One way to confirm that is to pinch off the hose from the canister to the throttle body and see if there is any change.
Some of the ground connections you might check are left front of the engine compartment top of upper radiator support, right front of engine compartment near battery . They should be the black wire with a white tracer. There is also a case ground for the computer located at the rear of the left fender apron.
I have come up with a few more checks you might try.
Just to touch all the bases, if you unplug each injector and check the resistance across the injector terminals it should read between 13.0-16.0 ohms. Any reading out of that range requires replacing.
The canister purge solenoid may be stuck open and if that is the case it will be constantly purging the canister pulling gasoline vapor into the engine causing an overfuel condition. One way to confirm that is to pinch off the hose from the canister to the throttle body and see if there is any change.
Some of the ground connections you might check are left front of the engine compartment top of upper radiator support, right front of engine compartment near battery . They should be the black wire with a white tracer. There is also a case ground for the computer located at the rear of the left fender apron.
Thread Starter
|
Member
Joined: Jun 2014
Posts: 73
ALOHA
What a nice day! I just read your post. To keep you posted, I checked the internet for the code scanner you recommended, interesting, I should be able to find one. I spoke to the Technician in regard to the computer remanufacture. He told me leaking capacitors had damaged the board. Did I miss something, because I closely checked and couldn't see or smell anything? He felt sure the computer was putting out codes and to assist him in the diagnostics to have Ford scan my van with their Milstar scanning device in real time and pull the codes and if necessary they would expedite the computer under warranty. From what I can tell they are very reputable and established and with the fact that my computer number was one of the most expensive, I saved several hundred dollars rebuilding my own unit. We'll Hanky, you may have saved me some "Mu-La." I had a appointment Tuesday with Ford and you just gave me some breathing time. But, I'am a firm believer that these vans are a good investment. Modestly, I was Transportion Specialist with the Navy Civil Service, one of fifty in the Federal Goverment and had their electric vechile program along with Technical and synthetic oils, etc. I can tell you with good faith that a used vechile 12 or more years old, with engines and transmissions thrown at it, is still fifty percent less than a new car based on "cost per mile." Get this, there are only ford commercial vans on this Island! Hope this made your day.
ALOHA
Jim
What a nice day! I just read your post. To keep you posted, I checked the internet for the code scanner you recommended, interesting, I should be able to find one. I spoke to the Technician in regard to the computer remanufacture. He told me leaking capacitors had damaged the board. Did I miss something, because I closely checked and couldn't see or smell anything? He felt sure the computer was putting out codes and to assist him in the diagnostics to have Ford scan my van with their Milstar scanning device in real time and pull the codes and if necessary they would expedite the computer under warranty. From what I can tell they are very reputable and established and with the fact that my computer number was one of the most expensive, I saved several hundred dollars rebuilding my own unit. We'll Hanky, you may have saved me some "Mu-La." I had a appointment Tuesday with Ford and you just gave me some breathing time. But, I'am a firm believer that these vans are a good investment. Modestly, I was Transportion Specialist with the Navy Civil Service, one of fifty in the Federal Goverment and had their electric vechile program along with Technical and synthetic oils, etc. I can tell you with good faith that a used vechile 12 or more years old, with engines and transmissions thrown at it, is still fifty percent less than a new car based on "cost per mile." Get this, there are only ford commercial vans on this Island! Hope this made your day.
ALOHA
Jim
Thread Starter
|
Member
Joined: Jun 2014
Posts: 73
Forgot, you might like this. The electric vehicles were early eighty Escorts with GE motors that never failed. The batteries were gel with electrical welding cables coming out the casings, crimped with lineman crimpers. The Navy program was considered at the time, one of the best in the Federal program. Honestly, I had no trouble having people come to Hawaii to work on the vehicles for a couple of weeks. We were getting about 120 miles per charge. You see can see battery range hasn't improved much even though I heard an ALCOA representative at the time say at a conference, that their aluminum batteries would run on water and put everybody out of business. His words. Talk later.
ALOHA
Jim
ALOHA
Jim
Senior Member
Joined: Jun 2010
Posts: 16,560
ALOHA
Anytime you make progress to get that van running like it should without a doubt makes my day!
If you order that #443 tool from Thexton and plug it into the diagnostic plug , the engine has to be warmed up so the O2 sensor is active and turn the steering wheel 1/2 turn in both directions ,tap the brake pedal once, depress the OD off switch on the shift stick off and on the vehicle computer will automatically run a series of tests and you will hear the engine RPM go up and down while it tests the EGR system among other tests. There is a point in the tests where you are requested to depress the throttle pedal once to initiate dynamic testing. You will love this little tool. When the tests are completed it will flash the codes for any problems it might have detected.
This is all built into the vehicle's computer and you are just taking advantage of it. Unfortunately they ended this function when OBDII took over.
Anytime you make progress to get that van running like it should without a doubt makes my day!
If you order that #443 tool from Thexton and plug it into the diagnostic plug , the engine has to be warmed up so the O2 sensor is active and turn the steering wheel 1/2 turn in both directions ,tap the brake pedal once, depress the OD off switch on the shift stick off and on the vehicle computer will automatically run a series of tests and you will hear the engine RPM go up and down while it tests the EGR system among other tests. There is a point in the tests where you are requested to depress the throttle pedal once to initiate dynamic testing. You will love this little tool. When the tests are completed it will flash the codes for any problems it might have detected.
This is all built into the vehicle's computer and you are just taking advantage of it. Unfortunately they ended this function when OBDII took over.