DupermanDave

I think I have all of my truck patched up and I have no more issues except this stupid EGR temperature sensor. I'm fixing up the bugs one by one and this next one has been happening since I got the truck. Whenever I'm coasting with the transmission in gear, whenever I apply the brakes the injectors are supposed to cut off and they do. I can tell they're cutting off because I'll be cruising at a good steady speed without giving it gas and as soon as I barely tap the brakes, the injectors cut off and that's when the truck jerks to slow down. It's hard to describe, but I can get a video if you guys want.

Basically I'll be coasting with the RPMS at a steady 2500...keep on coasting with my foot off the pedals...RPMS slowly decrease from 2500 to 2300....I step on the brakes and the truck jerks and the RPMS drop dramatically. I saw another post similar to this, but that one sounded more like a dashpot issue. This isn't related to the dashpot because the throttle body is fully closed at this point. I can let the truck coast for 5 seconds, 10 seconds, 15 seconds, 20 seconds and it's all fine up until I press the brakes.

Any ideas where to start looking?

Junkers88

Just to get a baseline to start chasing this, what does your rig idle at when it's warm?

DupermanDave

When the rig is warm I've got it idling at about 850-900 RPMS. At a cold idle it's about 1500.

DupermanDave

Looks like with the TPS unplugged, the cutoff doesn't happen. jhdfjklhsadljkfhwekrlhdmnbzxcvhsgdiuwareyhiashgdbf sdghjsdf. Bad or mis adjusted TPS. I'm sick of this POS TPS.

Thread closed. I'm buying a new TPS and seeing if my dad, the non-mechanic but good electrician, can adjust it for me.