Y2K SS

iTrader: (1)

Sup guys.... well this is the deal. This morning when I went to take my daughter to school I noticed the car like missing and stumbling at low throttle position. But when I open the throttle a lil it like kicks in and works fine. I remember something like this before but I don't quite remember what it was. Any clues??

thanks

GuitsBoy

iTrader: (4)

Check your sparkplug wires. They occasionally become unclicked.

Y2K SS

iTrader: (1)

But would that cause it only to miss at low throttle possition???? They seemed to be okay. Ill give it a try again...thanks

GuitsBoy

iTrader: (4)

Perhaps the spark is grounding to the header, but as you get on the throttle, the wire is making proper contact with the electrode again? I dont really know, but strange stuff has happened. I once had a plug wire that cam off and would miss above 2400 RPM consistantly but fire fine below that. Then last week I had the opposite where it missed at idle and fired fine above idle.

SUTTERERMAN85

iTrader: (42)

my car did that when i bought it. the plugs were so old and the gap was like .085. i think its supposed to be like.045 or something like that. maybe check those if they are old

Blk98Z28

iTrader: (6)

Check your O2's

LS1FIRE

iTrader: (1)

My car does that somtimes i thought maybe it was just the reaction of the cam and the tune.

UNFAIR

mine did the exact same thing after a sparkplug change. ran HPtuners and discovered #4 cylinder was misfiring. checked the BRANDNEW ngk plug and it was slightly bent when compared to another one. changed it out and she purred like a kitten again.

so it sounds like a spark plug issue to me.

Y2K SS

iTrader: (1)

Yep that's what it was. My Bank 1 sensor went out and my comp was compensating and dumpin fuel into the motor to make sure it didn't run lean and after awhile it began to run normal. (guess the comp figured it out). But I just changed the sensor out.

thanks for all the input.

Blk98Z28

iTrader: (6)

99FormulaM6

iTrader: (21)

mine was doing the same thing. my SES light came on for bank 1 o2, so i put the car on a lift and checked both o2's out....and well, they both were black from when i ran open headers. i had a spare o2 lying around so i changed one sensor and left the other alone. so far i havent gotten any more SES lights, but occasionally it will hesitate and miss like you described in the first post.