So after taking my car to the track last night it is defanatley running slow, i cant figure it out problem goes as follows.....If my car has been sitting for a long period of tim like overnight or 5-6 hours it runs awesome does not hesitate at all and acclerates like it should but after driving for about 10-15 minutes it starts to run really crappy , idling rougher hesitating when acclerating and just not feel as fast as it should???? HELP!!!

 

Sounds like an oxygen sensor....Unplug them for a trip down the road and see if that doesn't clear up anything. It also could be the ignition moduel. When they heat up, they will cause a car to miss, or just litteraly die all together.

 

No SES light? If not, maybe your EGR is fugged up. How old are your plugs/wires? I had a burnt wire that made my car run like that. If it's not throwing a code, it makes it a little harder to track down.

 

Poor running is just something to remind you you have an lt1..



And its prolly o2's

 

Why cut yourself and everybody else on here down like that? It think my motor runs decent, and several others do. I think its time you did another mod to your motor to lift your spirits.

 

Most lt1's are ragged out and never fixed. This is a benefit to those who take the time and money to assemble one right. People think it's just an lt1.

 

true, but I wouldnt expect a general comment like that from somebody that owned one.

 

[QUOTE=LT14LIFE JT]No SES light? If not, maybe your EGR is fugged up. How old are your plugs/wires? I had a burnt wire that made my car run like that. If it's not throwing a code, it makes it a little harder to track down.[/



I have no idea how old my plugs/wires are i know i have never changed them so im gonna start with that then the o2 sensors ...hopefully its not the opti

 

you didn't answer it, but wondering if the SES light is on? (right away, or after it warms up)


edit**

got a kick out of that btw, nothing like a little self humor

 

no ses light is on just the check engine light cause i have not reset it since replacong my heads

 

have you tested to see what codes it is throwing?

 

If it is not setting the SES light, most like likely, it is not the O2's. While it would not hurt the change them, try changing the teperature sensor in the water pump. That is the one the computer uses to base it's tune on. It's alot cheaper than O2's.

My 2 cents

 

I AM A COMPLETE ******* IDIOT, i just realized that ses stands for SERVICE ENGINE SOON which is in fact on in my car....i i had it read a couple months ago by my brother he said something about a misfire????
btw. ses on right away all the time

 

get it checks it if it says multiple misfires that means o2 sensors most likely.

 

speak for your car Mine runs like firebat out of hell and back to get more

 

Lol, it happens. defintly find out what codes it's throwing.

 

i believe thats exactly what it said...time for new o2 sensors

 

if i was you i would put new wires and plugs if you havent done that yet would be a good tune up for the car

 

yea im also gonna do new plugs and wires for sure ...its about time anyways, man this car is draining me lol

 

haha so does mine

bad 02, 2 burned wires with oil spraying out of my valve cover almost catching my car on fire i was still smoking tires through 3 gears