Runs better with the service light on?

[meangreenz28]

Hi, recently had a little problem with the camaro. A mile away from my house it started spitting and sputtering, so i turned around. Once i got it in the garage i opened up the hood and quickly saw sparking. The Number 5 spark plug wire was completely melted to the header. I soon replaced the burnt wire with a stock one i took off a year ago: thinking that this would fix everything. The result was that it no longer spit and sputtered, the service light never comes on, and now i have terrible throttle response, is a complete dog in higher rpms and in order to get it started i got to put it to the floor.

Could there be something when the service light is on it dosent get signals from all the sensors?

[99Hugger]

I'd 1st check the spark plug in the cylinder that had the bad wire. Plug may have fouled.

[RrCoX22]

ya... seems like your running with 7 cylinders which would result in surging and rough idle and engine rpm's. get a new plug and see if the results change

it shouldn't be in the wire, although if you replace the plug and still have a problem... both your wires you tried are bad

[chevymec]

Originally Posted by 99Hugger

I'd 1st check the spark plug in the cylinder that had the bad wire. Plug may have fouled.

Yep, if it couldn't fire then the fuel isn't gonna burn and stay on the plug.

[meangreenz28]

k, yea i will have to check it. i was thinking the same thing , but i have ran it for a while with the new wire on it so i thought the plug would burn itself off. I will check when i go home next.

[chevymec]

On my '86 I had a colder plug in it and it would foul out if I started it too many times with out driving it. I think if I had an MSD box on it , it would have helped a little. I lucked up a few times where driving would clean it off.

[RrCoX22]

the gap may have decreased from being burnt