What all controls fueling on an 01.5?

BgBlDodge

BgBlDodge

Hates hippies
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May 7, 2007
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I've narrowed my problem down to fueling. So far I've changed the injection pump, APPS, MAP sensor, Cam position sensor, reflashed the ECM, changed injectors, tried a drag comp, and upped my fuel pressure some (13psi at WOT). My wire tap is soldered on to the pump wire so that's a good connection.

Should I change out the IAT sensor to just for fun? I changed my 9 month old injection pump out with one that's much older and picked up 45hp on the dyno so I know it's a fueling issue. My 62 clears all of my fuel up at WOT.

What about a speed sensor? My truck will pop a no speed sensor code and I've replaced the one on the rear end and the two on the front. What about the one on the tranny?

I'm grasping at straws here. I'm sending my 9 month old pump off to be rebuilt soon so I'll at least have that done but now I'm trying to figure out what all controls fueling.
 
glad to hear you got an increase in HP! I would double check your ground wire to your pump tap. Is it ground to the battery? Have you checked to see if your new APPS has 5V @ WOT?
 
when you talk about solderin the wire tap is that the wire to run a chip off of it i take it right?
 
My TST taps into a wire in the harness to get it's ground and I'm pretty sure it's working right. I picked up 106hp turning it on 7 from having it off (smarty only did 314hp). I haven't checked APPS voltage yet but I'll get on that.

And yes, the wire I'm talking about soldering to is the one on the pump that you have to tap to run a box.
 
Nah. Sent it back to my buddy. He said the smarty alone wouldn't spool the twins enough. LOL
 
BgBlDodge said:
Nah. Sent it back to my buddy. He said the smarty alone wouldn't spool the twins enough. LOL
Click to expand...

well let him borrow your half working tst for a while to spool the twins and try the comp again when you get your pump back.
 
I'm thinking I'm gonna skip both of those and go straight to an adrenaline. ;)
 
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