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How did you make out?

10 deg at idle, then lots after?

Propane likes compression so I who think you could use lots of advance under power. I run an old HIE ignition on another truck. The low...

Did you solve the problem?

I suspect that Vss is not calculating exact. Mine overrevved so I dropped the VSS upshift until it hit the right RPM. Maybe the tire calculator doesn't change all...

Sorry for the delay

I'm running gas with thermocouple one inch from manifold

Cat protection makes sense. 1500F WOT 5200RPM 2 gear
Also seems close to danger point for pistons/heads etc

Any guidlines on what type of EGT is norm/safe?

I seem to cruise at 1000+ and up to 1500 WOT

You tried D1008 - TCC Throttle Release ?

Wow! Good info guys!

Here's the history:

It seems that when I would run a big hill and heat the tranny, when I reached the top and let off, it would take a while (20-30 sec) to shift into 4th...

Mine gets to 142 C. and the high temp threshold seems to be 129. Has been a problem since new. They didn't put a thermostat in there did they? :bash:

Thanks I just picked up some chopped up Y pipe pieces from the wrecker and got a couple spare O2's. Free is good!

Now I can build my own Y pipe, no cats.

TCC applying at 1200 untill 70% TP

releasing anything over 80%

Bosch 13111?

One bank is hotter than the other. Possible sensor gone bad. Anybody have suggestions as recomended replacements?

Cost Vs Accuracy

Just curious. I'm locking up the TCC at low speeds keeping the rev at 1200 WOT. How strong is that little clutch?

try the upshift tables

Throttle position Vs Road Speed