buggy will not start

[94Dodge Truggy]

I like your ground idea. I am going to try that after work tonight!

[blazerbrad]

Have you hooked up a diagnostic tool yet? Do you have the capability to do this (i.e. is the diagnostic port installed)?

Please don't take this personally, but you are wasting a lot of time and money throwing random parts at the engine and hoping you get lucky.

Anyway, here are a few places to start. This is assuming the ASD relay is good.

**NOTE: take a good look at any connectors you unhook for bent pins, loose wires/broken wires, dirt, or green crud (corrosion), my guess is this will the be the ultimate cause of the problem.

1. actuate ASD (we usually do it with the DRB tool but I believe turning the key on will do it also, but remember that I believe it will only give power to the fuel pump for a few seconds upon initial key-on)
2. touch fuel pump relay (located in the power distribution center...big fuse box), it should pulsate when you first turn the key on
2a. yes - turn ignition off, disconnect FP relay, (diagnostic procedure does not say to turn ignition back on???), probe cavity D on the PDC (location where the relay was), is voltage above 10 V?
2b. no - disconnect FP relay, turn ignition on, probe cavity A on the PDC (location where the relay was), is voltage above 10 V?

Also, while the FP relay is out check the resistance between pins 85 and 86. The resistance should be below 100 ohms. If not, the relay is probably bad.

This is further down the chart, but it would probably we worth it to do a visual inspection of the fuel pump harness connector (it's a 5 pin flat style connector, but can't remember exactly where it is).

If you get a chance do these procedures and see what the results are, then we can go from there.

[94Dodge Truggy]

diagnostic port was eliminated a year ago along with the interior fuse panel. The fuse and relay box is still connected.

[blazerbrad]

diagnostic port was eliminated a year ago along with the interior fuse panel. The fuse and relay box is still connected.

Getting rid of the diagnostic port just made it about 10 times harder to figure out a problem like this, but I guess that's a moot point now.

Couple of other things I forgot to mention.

Make sure you have at least 10V at the battery!

You can also do a quick check of the ASD relay the same way was the FP relay. Check to see if it's clicking when you key-on. If not, pull the relay and check the resistance between 85 and 86. Then probe cavity A on the PDC for voltage.

[94Dodge Truggy]

Choosing to get rid of the diagnostic port eliminated 70 percent of the wires. I thought it would be easier to troubleshoot with less wires. That may have been a bad idea! Both the fuel pump relay and the asd relay do not click at all unless I fool the computer and run power to the coil and ground the black with brown wire and get the truck running.

[94Dodge Truggy]

$300.00 reward to the fellar who can get it running like it should.

[KargoMaster]

The quote from JN musta been pretty bad... :(

[carwash]

electrical problems have got to be the most aggravating in the world on a vehicle...

hope you get it figured out man. gotta be somebody on here that can fix it.

[94Dodge Truggy]

The quote from JN musta been pretty bad... :(

The quote was good, but my enclosed trailer will not be in until 3-21-07 and I am impatient. Plus the thing will be a pain to get over there with no power.

[carwash]

$50 tow? gotta be someone that could get it there for you.

[blazerbrad]

If you get a chance, do this to the ASD relay.......... pull the relay and check the resistance between 85 and 86. Then probe cavity A on the PDC for voltage.

If it's the auto-theft, then I'm not sure what to do. With the diagnostic tool it takes about 10 seconds to see if that is the issue (not trying to be a prick or anything, that's just the way it is).

[Mike F]

blazerbrad, do you have the complet set of wire diagrams for the 94? If you do the wire harnes can be rebuilt for what is needed and still be stripped down to the bare min.

94Dodge, do you still have all the wires and connectors you pulled? It would save a junk yard run. Did you buy a new programable computer? Maybe the auto theft could be turned off. Did you say the relays turn on after you jump things out? That would show they work if they do, if not they will need to be tested as blazerbrad said. You did say you bought new ones.

The autozone diagram is not the greatest and does not realy show the auto theft.

With the rebuilt harnes you could plug in the diagnostic tool and possibly not even have to if you discover a wire that is bad or missing.

[94Dodge Truggy]

I threw away all of the removed harness since the truck ran great for a year + since. I am not going to have time to check it out further until friday afternoon. I checked the resistance between 85 and 86 and tested good. I do not think that the truck had auto theft on it.

[blazerbrad]

Alright, here are a few more steps. Sorry for jumping around so much but I'm trying to decipher the procedure that is written assuming you are using a diagnostic tool.

Check power to the ASD relay as mentioned before.

Disconnect PCM connector and remove ASD relay. Check resistance in the circuit between the PCM and ASD connection (pin 51 of the PCM connector, and cavity C of the relay connector). Should be below 5 ohms.

I do not have the complete wiring diagram, just a few documents I scrounged up at work...we rarely do anything with vehicle that is not brand new, so I'm just lucky we still have some

[94Dodge Truggy]

Finished up the driveshafts and spare set today. Tackling the wiring tonight. I may try to make it out to the haspin run this weekend.