Local Boy
11-02-2011, 07:50 PM
Aloha Everyone,
Recently, after mashing the pedal and putting it in @ 7-9 lbs of boost...the car is not running right...when I came off the throttle, the car felt like it sucked air (1/4 tank) and the idle seemed to flutter/stumble while I was decelerating and NO throttle input. But, it did not go away...
Now...I 'am finding that the A/F moves toward the extreme (12 [rich]/ 15.9 [lean]) much more often and regularly, like it's hunting...Never did this before..
Also, the A/F shows rich (12.5) when I 'am decelerating and NO throttle input. The cause of this, I believe is my over all problem...Once the trans down shifts it goes lean (16), as should..But, I think when the T/C un-locks, the A/F goes rich (11's) again (NO throttle input - still decelerating)...
Upon start up the A/F reads 10.5 and the volts read @12...Once the A/F comes back up @ 14.5, the volts come back to 13.9 volts...This is freaky....
Otherwise, car car idles fine, accelerates fine, but stumbles when at @ 10% TPS or lower, probably when it goes rich...
No codes...or engine light...Likewise, no unusual sounds or noises from the motor...
On another issue, I have a retro fitted LCM (external relay - Thanks Jim!) but still have my head lights cutting out??? I changed out the light switch - no change - still cuts out... I have no clue why???
Any thoughts would be much appreciated...
Thanks...
Aloha
Recently, after mashing the pedal and putting it in @ 7-9 lbs of boost...the car is not running right...when I came off the throttle, the car felt like it sucked air (1/4 tank) and the idle seemed to flutter/stumble while I was decelerating and NO throttle input. But, it did not go away...
Now...I 'am finding that the A/F moves toward the extreme (12 [rich]/ 15.9 [lean]) much more often and regularly, like it's hunting...Never did this before..
Also, the A/F shows rich (12.5) when I 'am decelerating and NO throttle input. The cause of this, I believe is my over all problem...Once the trans down shifts it goes lean (16), as should..But, I think when the T/C un-locks, the A/F goes rich (11's) again (NO throttle input - still decelerating)...
Upon start up the A/F reads 10.5 and the volts read @12...Once the A/F comes back up @ 14.5, the volts come back to 13.9 volts...This is freaky....
Otherwise, car car idles fine, accelerates fine, but stumbles when at @ 10% TPS or lower, probably when it goes rich...
No codes...or engine light...Likewise, no unusual sounds or noises from the motor...
On another issue, I have a retro fitted LCM (external relay - Thanks Jim!) but still have my head lights cutting out??? I changed out the light switch - no change - still cuts out... I have no clue why???
Any thoughts would be much appreciated...
Thanks...
Aloha