Mopar1973Man

If so then there would be a error code or the sensors will not match at cold engine key on. Just take a live data tool or Quadzilla key on and look at the IAT and ECT they should match or very close. Excessively cold ECT only sensor will change idle speed. IAT will do nothing to idle speed. IAT only controls timing and grid heaters.

Yup normal. ECM can cut fuel to zero to drop RPM quickly.

First remove the switch reset the codes and make sure there is no IAT or ECT codes. If none are found then hook it back up and and test its function. As for the P0380 and P0382 those are grid heater solenoid issues or wiring issues to the grid heaters. P0236 typically is a boost fooler issue your tuner isn't boost fooling correctly. If you remove the tuner and hook up stock again and the P0236 goes away then the tuner is at fault. That's if you have a tuner.

Today in my work load was my shop owner asking me to replace his water pump. Pretty straight forward. Got to the part of refilling the coolant in the system. I did like I normally do is remove the thermostat and fill when I popped thermostat out and the bypass flap is missing. Now this is the second Cummins thermostat seen fail.

Yes, if its in full defuel running down grade. VP44 has the ability to shut off fuel completely. These are not like a gas powered car which requires a prefect air fuel ratio. Diesel can cut fuel on down hills. No it won't stall the ECM will rise up keep it running. Another time this will happen is when your injectors are too fair gone. Like I've got @mr.obvious has his showing 0% engine load because the injectors are popping so low that the ECM is attempting to cut fuel deeply to hold the 800 RPM but it cannot do it. His idle is at 810 to 820 RPM. This is a Injectors that are purely worn out need replacing. Normal good injectors should see 5% to 10% engine load or 204 to 409 fueling command on the quad. It appears your injectors are wiped out. Minimum pop is 293 bar I'm betting your below 260 bar now. Just for fun my 7 x 0.010 injectors are popped at 320 bar. My idle engine load is 10 to 13% (409 to 532)/ typically but as they wear I'm seeing lows now of 7%. (286).

Like for mine 0 to 20 PSI is good beyond 20 PSI it goes out the window. Where my boost gauge shows 47 PSI Quadzilla will report 67 to 69 PSI. I'm sure my small 60/60/12 turbo cant do that much.

Either way the MAP sensor accuracy isn't the greatest. Best to opt for a boost gauge than trying to read the MAP sensor.

Mine failed and left me struggling for a fuel station at 3/8 of a tank. New float assembly and back to normal and reading correctly.

APPS sensor most likely wearing out.

Kind of like buying a Cummins thermostat for high dollar wanting quality to find out its a cheap Mr. Gasket or Robertshaw thermostat.

Actually a bad ECT sensor reading low will cause high idle. IAT sensor does noting but jack up timing more hence the high idle switch, but if the software is enabled it should cancel after 170°F the resume normal idle at 800 RPM.

Geez... I get up in the morning its 6 to 15°F in the morning. Might warm up to 30°F. This is basically all minus numbers for our Canada folks.

94 to 98 does not have an ECM. Its a standalone engine. Ill be found similar setup up soon. Shoving a 6BT Cummins in a 47 Chevy panel wagon. Getting the goodies together. Electrically need power for the fuel solenoid and the starter that all.

Module masters in Moscow, Idaho can repair cluster if needed. This isn't the first one I've seen.

No makes it worse. Best off installing a protection fuse on the blue wire. Then send the PCM out for repair. External regulators tend to over or under charge more because there is no battery temp sensor. This depend on where the regulator is mounted. Too cold over charge, too hot under charge.

Roll back to the 94 wiring diagrams that should help.

Dodge stock aluminum wheels don't hold up to weight well. Lost mine due to cracking issues back long time again. All the firewood hauling and rough forestry roads beat them till they cracked.

Don't use any gasket sealant. Gasket is installed dry with no sealant.

I would check throttle linkage when it idling high. See if the APPS is fully resting on the stop pin. Did you attempt to adjust the APPS voltage? If so this can happen need to drop 0.1 to 0.2 below the tag voltage. Bad APPS sensor possibly...

Sorry to hear the damage. Thank you for sharing letting others know of this problem.

Got the switch back LEDs in both trucks. Really nice to run marker lights without the head lights. Makes your truck bit more modern with daytime running lights. There is an article for even 12V 2nd gens.

That should work. The H1 Minis are easy to do. The D2S takes a bit of customizing to make it fit.

Ask @Me78569 he know where to buy the kits.

DAP 7 x 0.010 injectors (@ 320 bar) VCO's I'll let you know how long they go. Lots of idle time, lots of highway time.

Not really. I got a set of Sport Headlights (clear lens) and did the relay mod and wasn't very good. That is what pushed me to sell my sport headlights and move on to the HID's.