ccrm?

[frcoonhounds]

I have a 93 atx.

The car has been having starting issues that I believe are stemming from the camshaft position sensor. However, yesterday the car was running as usual, and as I went to start it at the gas station all power was gone. A loose neg battery cable seemed to be the culprit.

After reconnecting the cable, SHO wouldn't start. Since looking at it today, the first time i turned the ignition to ON I had no sound from the fuel pump. Decided I'd check the fuses again and disconnected the battery. After finding no blown fuses I decided to pull some codes and reconnected the battery. When I turned the car to ON the fuel pump sounded, but SHO wouldn't start.

When I turn the car ON the ccrm does click, but no fuel pump sound. Also, when I have the code scanner connected (has new battery) it has power. After turning the ignition to ON, the code scanner does not receive power. Basically, can't perform the engine off code test.

Sorry for the novel, any help is appreciated.

 

[riden2low]

http://www.shophoenixproject.com/ Go here and use the paper clip method and plus it gives you all of the codes

 

[Off Road SHO]

I have a 93 atx.

The car has been having starting issues that I believe are stemming from the camshaft position sensor. However, yesterday the car was running as usual, and as I went to start it at the gas station all power was gone. A loose neg battery cable seemed to be the culprit.

After reconnecting the cable, SHO wouldn't start. Since looking at it today, the first time i turned the ignition to ON I had no sound from the fuel pump. Decided I'd check the fuses again and disconnected the battery. After finding no blown fuses I decided to pull some codes and reconnected the battery. When I turned the car to ON the fuel pump sounded, but SHO wouldn't start.

When I turn the car ON the ccrm does click, but no fuel pump sound. Also, when I have the code scanner connected (has new battery) it has power. After turning the ignition to ON, the code scanner does not receive power. Basically, can't perform the engine off code test.

Sorry for the novel, any help is appreciated.

If you lose power to your scanner when you turn the key to "on" you have a key problem. Do you know where your ignition switch is? It's on the side of the steering column by your left knee. It's a slider type switch and they do wear out or loose their contact with the rest of the wiring harness at their connector. The connector should have a couple of thick yellow wires going to it that are hot at all times (I think so don't short them to ground)

Tom

 

[frcoonhounds]

I attempted to do the KOEO test via te paper clip method and no codes flashed, nor did the engine run any self tests. Attempted to use the scanner again and I recieved the same result. I also took a look at the ignition connector, and all wires looked good. The car does crank when I try to start it, just not sure why the fuel pump isn't running. How do I check for spark at the plugs?

 

[91PDXmocha]

Pull a wire off and see if it arcs while turning it over , or spray in a bit of starting fluid and see if it fires right up .

 

[AREA 91]

Get a fuel pressure guage and connect it to the fuel rail. See what the pressure is with key on and cranking. You can also "tap" on the CCRM to see if you have a bad relay.

 

[SHOZ123]

You can force the fuel pump on by shorting a pin to ground with the key on. If it does not come on then there is a wiring problem between the CCRM and the fuel pump. Could also be the roll over switch.

 

[frcoonhounds]

Just got in a new ccrm today and that did not fix the problem. Both the old and the new ccrm would click when I turned the car on. Checked the roll over switch and there was no problem there. I have never done anything with an electrical system before outside of installing my sound system. Where should I go from here?

 

[SHOZ123]

Did you try grounding the fuel pump wire with the key in run on the underhood data link connector?

 

[frcoonhounds]

I believe so. I connected the paper clip to the two ports you labeled on the diagram, and turned the key on, which resulted in nothing. I am pretty sure its some electrical issue between the relay and whatever that relay happens to control. As I stated before, when an OBD-I scanner is plugged into the "data link connector", the scanner appears to lose it's ground when the ignition is turned to ON. The harness connecting to the CCRM has probably seen better days, but I'm not even sure what each wire is. Is there a wiring diagram available?

On a side note, I'm replacing my front valve cover gasket this week, so any ideas as to how I can further troubleshoot this problem is appreciated. Thanks so much for all your guys' help.

*Update* I realized on pheonix project that the grey separate connector is the ground. I did the paper clip test again and still no fuel pump. Also tried the code test and nothing happened. I did disconnect my battery, but even if I cleared the system shouldn't the check engine light blink continuously?

 

[SHOZ123]

I would jumper the fuel pump slot to the engine to ground.

 

[frcoonhounds]

Just finished the valve cover gasket yesterday. I am planning on hooking everything back up and trying to ground the fuel pump to the engine somewhere. I found this wiring diagram yesterday, but there's a lot of stuff going on in it. I'm going to print it out and try to trace out any possible wiring issues. I'm guessing that all i have to do is follow the line from one end to the other is all? Any help on this diagram would be appreciated.

http://www.ford-taurus.narod.ru/9324.pdf

 

[trainguy1989]

ECU connector conneted to the computer correctly? I had some pins in the connector get pushed through the connector and did not make contact with the computer. This caused my CCRM to act up and I was unable to gather codes.

 

[frcoonhounds]

Just finished the valve cover seal and got everything connected. Fuel pump still does not prime, and I pulled a plug to check for spark and there was no spark. I'm having a hard time deciphering the wiring diagram I posted the link for, but I'm not sure what would cause my fuel pump and coil pack to not work. CCRM still makes the click noise after you turn the ignition on.

I'm guessing the problem stems from somewhere in between the ccrm harness and those components. The car turns over still so I'm not really sure where to go from here.

 

[frcoonhounds]

Was fishing around the forums some more today. Is it possible the PCM could be the culprit? I'm going to re check the spark tonight, and fish out the PCM from the dash tomorrow to check for any loose connections or bent wires.

 

[projectSHO89]

IRCM/CCRM info is in a stickied post in the Electronics sub-forum. This post tells how it works: http://www.shoforum.com/showpost.php?p=739231&postcount=19

Until you follow Paul's (twice) recommendation regarding testing the CCRM fuel pump circuit, you're wasting our time and yours.

 

[frcoonhounds]

Thanks for that sticky. In regards to testing the fuel pump, I have grounded it to multiple engine grounds, to the body, and to the grey connector, all with no success. I tried again one more time today and still nothing. Also rechecked for spark and also had none. I don't quite understand how a loose battery cable could cause both my fuel pump and coil pack to fail at the same time.

 

[SHOMON]

Unplug Your coolant bottle sensor. Replace 10 amp mini fuse in under hood fuse box. I the had the same symptoms as yours on my 95 atx. I replaced the CCRM thinking it was the problem. It was the sensor on the overflow bottle popping the fuse. I think it is marked ign.

 

[frcoonhounds]

I'll check the fuse tomorrow. The coolant sensor has actually been unplugged because it started to smoke a while back. Thanks for the heads up.

 

[projectSHO89]

A blown fuse on the coolant sensor will **** spark but will not affect the fuel pump's operation.