Truck stalls at low RPM, bogs down when gas applied

[James Kerr]

Having some trouble with my truck, wondered if the forum could help me out. My truck started stalling when I pressed the clutch or went out of gear. Every time I stopped it would stall and I would have to start it and apply a little gas to keep it from stalling. Then it started to bog down when I gave it gas while driving and the more I pressed the pedal the more it would bog down, almost like I was applying the breaks. Checked the codes and its throwing 0135 1131 (both of which Ive had forever) and a new code, 1401 (DPFE High Voltage). I figured it must be the DPFE sensor so I changed it. No difference, still have the same problem. Now I noticed today while testing it it was idling high, above 2000. Any ideas?



P0135 O2 sensor heater circuit malfunction bank 1 sensor 1

P1131 Insuff, switching O2 bank 1 sensor 1 sensor/lean

 

[Mike Dziubina]

IAC motor maybe? give it a clean

 

[EddieS'04]

Check the infamous hose from the pcv. Your sucking unmetered air somewhere.

 

[Robert Caffyn]

Sort of the same problem with my Gen2, so today I put a clean K&N filter on and cleaned the Mass Airflow Sensor and WALLA!! Runs great(still gonna change the plugs Wednesday). just my experience, BC

 

[Jeremiah Morgan]

IAC

TPS

Vaccum leak

02 sensors

Clean MAF

Unmetered air somewhere??

 

[James Kerr]

Im going to look up the proceedures for troubleshooting the IAC and TPS. I dont hear any vacuum leaks, its not the hose by the PCV valve, I replaced that not too long ago. Also it sometimes idles fine but as soon as I try to drive and give it gas the truck actually slows down and the engine feels like it is the one slowing it. There is also a funny smell. Anyone think that bad O2 sensor could cause such a large problem?

 

[Jose Santana]

I got those same issues a few weeks back. I got misfiring codes as well as a O2 sensor code.

I changed the PCV hose elbow and that didn't fix it. I thrn changed the O2 sensors and it is running better than it has in a long time. I think both of these really helped.



Joseymack

 

[James Kerr]

I tested the TPS and its giving the right voltage so I dont think its that. I reset the computer and now I was able to drive the truck a couple of miles and the CEL has not come back on yet. I still dont trust it to get me to work so I'll drive it around this weekend and see what happens.