My GN has been running great in the past until about a week ago. It has developed a rough idle (whether at startup or warmed up), runs really rich (burns your eyes), and threw a code 44 while at idle for the first five minutes. The car will also cutoff when put in gear. Here are my Scanmaster readings at idle for yesterday and today:
Yesterday: (warmed up)
O2- 093-519 (varies)
AF- 02
L8- 23
BAT- 13.8
INT- 137
BL-160
MPH-00
CLT-171
ATS-60
r-1000
TPS .42 and 4.78 at WOT
IAC-00 (in gear is around 17)
CC-17
MAL-44
Today: (warmed up and after changing a bad vac hose)
O2- 031 steady and 664 after i revved it
AF-02
L8-22
BAT-14.2
INT-136
BL-160
MPH-00
CLT-173
ATS-59
r-925-975
TPS-.42 and 4.78 at WOT
IAC-00 (in gear is around 17)
CC-118 steady until I revved it then will cycle from 0-255 in about a minute
MAL-44
I know my IAC count is off while at idle and warmed up, but I tried to adjust it per gnttype, but as I turned the screw ccw, and the number got up to around 03, the rpms dropped and the car cutoff. The TPS also went down to .38. So I turned it back and left it per the SM readings. Also, my FP is set at 40 @ idle.
My engine was rebuilt last October by KDK Performance and ran awesome until now. I know all sensors, injectors,etc. have been replaced/adjusted so I'm really not sure if I have to readjust the IAC/TPS. Also, I'm running a Denso O2 sensor. Could this be going bad after only 5 months or so? I 'm going to order another one and change it out. Should i check the throttle body and clean that out? I already pulled the MAF sensor out and cleaned that out w/ MAF claener with no change.
I'm at a dead end so any help would be appreciated.Thanks.
James
Yesterday: (warmed up)
O2- 093-519 (varies)
AF- 02
L8- 23
BAT- 13.8
INT- 137
BL-160
MPH-00
CLT-171
ATS-60
r-1000
TPS .42 and 4.78 at WOT
IAC-00 (in gear is around 17)
CC-17
MAL-44
Today: (warmed up and after changing a bad vac hose)
O2- 031 steady and 664 after i revved it
AF-02
L8-22
BAT-14.2
INT-136
BL-160
MPH-00
CLT-173
ATS-59
r-925-975
TPS-.42 and 4.78 at WOT
IAC-00 (in gear is around 17)
CC-118 steady until I revved it then will cycle from 0-255 in about a minute
MAL-44
I know my IAC count is off while at idle and warmed up, but I tried to adjust it per gnttype, but as I turned the screw ccw, and the number got up to around 03, the rpms dropped and the car cutoff. The TPS also went down to .38. So I turned it back and left it per the SM readings. Also, my FP is set at 40 @ idle.
My engine was rebuilt last October by KDK Performance and ran awesome until now. I know all sensors, injectors,etc. have been replaced/adjusted so I'm really not sure if I have to readjust the IAC/TPS. Also, I'm running a Denso O2 sensor. Could this be going bad after only 5 months or so? I 'm going to order another one and change it out. Should i check the throttle body and clean that out? I already pulled the MAF sensor out and cleaned that out w/ MAF claener with no change.
I'm at a dead end so any help would be appreciated.Thanks.
James