Maroon96

hy all !
when i stand at redlight i feel a missfire all 4-5 seconds ,when i drive its nothing also under full power ,so maybee i should change the spark plugs or wires ?
car has 80.000 miles
thanks for your opinions
rob /vienna

Injuneer

Does the SES light ever flash?

Your description appears to indicate that this problem only happens when you stop at a red light, and only for 4-5 seconds. Are you indicating the idle is unstable at the moment you come to a full stop, it runs rough for 4-5 seconds, and then clears up while you continue to sit at the light?

I'm assuming when you said "when i drive its nothing also under full power" you were indicating that you do not have a problem at full power. Or am I reading this wrong?

Maroon96

Hello Injuneer !
no, i mean when i stay at redlight ,sometimes the missfire is after 4 or 5 seconds ,then 10 sec.it ran perfect and then the next missfire .it isnt every time the same ,hope you understand
when i have the automatic in "neutral" i notice the missfire not so strong as when its in "D"
i have OBD 1 conversion and never had a SES light
i feel the missfire also only when the motor temp is normal high, when its cold i feel no missfire
yes i do not have a problem under driving and WOT

thank you ,greets Robert