Need help with Pyro issues

[Dozerboy]

I have a Di Pricol 1600* pyro that has gone bad I guess. The readings are erratic it kind of hags out in 1 area sometimes its 500* others its 1500*. It fluctuates 20* or so when I get on and off the throttle. I call Di and they tell me it sounds like the gauge but to check my wiring and the thermal coupler should read in mV at the harness if I get any reading its good. Everything checks outs and my warranty gone so I buy a gauge. I plug it in and it won't come off 0 since my old one moved at least I figure the servo is bad and they agree and send me a 2nd gauge. Same thing so I call them now they tell me what mV I should be reading at what temp it should be low like single digits. Wells its not its erratic and I get readings over 100 with the truck off. They don't seem to believe me with what I'm reading. I think the thermal coupler is bad too. They said it going bad can make the gauge go bad, but they don't want to keep shipping me parts to try. I'm getting pissed and the guy that helping me doesn't speak english real well so came anyone help me out some? I tired of checking things and getting the same results.

 

[Dozerboy]

Another thing when I check the mV I can never get a constant # it will start at ~100 and go down. If I take the leads off and put them back on it will start at ~100 again. Maybe my Multimeter isn't good/good enough to read mV. I works fine for everything else, but I have never needed to read anything in mV before.

 

[custom8726]

Thermo coupler, I just had a very similar thing happen.. I thought it was the gauge, so I bought a new one (NO WARRANTY) Well it was not the gauge I then went through and changed my wires going to the coupler thinking maybe it had a bad spot internally, again not the problem finally I got a new thermo coupler (Probe) and all is well:thumb:

 

[TIM Z]

I bet its your thermocouple also.

My Isspro gauge wasnt reading correct either, i bought a new thermocouple and all is good.

And thats BS the damn guy cant speak english!!!!!!

 

[Dozerboy]

Thermo coupler, I just had a very similar thing happen.. I thought it was the gauge, so I bought a new one (NO WARRANTY) Well it was not the gauge I then went through and changed my wires going to the coupler thinking maybe it had a bad spot internally, again not the problem finally I got a new thermo coupler (Probe) and all is well:thumb:

But did your new gauge read/respond the same as your old one? My old one moves but both the new ones doesn't do a thing.

 

[JoshH]

I've replaced two DiPricol probes in the past month because they were bad. If you measure resistance across the probe, what do you see?

 

[dmaxfireman]

go with a new probe same thing happened with mine

 

[Dozerboy]

I've replaced two DiPricol probes in the past month because they were bad. If you measure resistance across the probe, what do you see?

I haven't removed it yet they told me to just read the mV off the harness. Where should I check resistance from the end of the probe to there it attaches to the leads that got to the gauge harness?

 

[stacks04]

I would see no problems checking it at the plug end for the gauge.

 

[Dozerboy]

I can't get any reading of resistance from the end of the probe to either of the wires coming off it.

 

[Dozerboy]

When they have some probes in stock they will ship one to me IIRC they told me it should of read 2.something. There tech support kind of sucks guess I should of came here first. and my pyro would of been working weeks ago maybe.

FYI the Optix pyros have a life time warranty on the probe that not many people know about.