some probs

i have a 1996 olds bravada with the 4.3 and it has been a slug lately and getting like 10mpg also has a high ideal whene cold like 1200rpm. if it is warm and you shut it off and turn it back on and pull out it hestates and misses like once or twice no codes what would caues this it has 90000miles on it

How long has it been since you have done a full tune-up. Plugs, wires, cap, rotor, air filter, oil change. Also make sure the egr is clean. Do a search there are lots of walk throughs on this.

My truck has a bad hesitation but its older and after i finally got some extra cash and time i did a tune up well 110k miles later i found out that it still had the original spark plugs, wires, cap and rotor. Well considering this i was surprised it still ran.

Yip, we need your tuneup information.

it has never had a tune up also could the o2 senser caues this i had a code before for heated o2 senser is that the one after the cat P0141 - HO2S Heater Circuit Bank 1 Sensor 2 what one is this

it has never had a tune up also could the o2 senser caues this i had a code before for heated o2 senser is that the one after the cat P0141 - HO2S Heater Circuit Bank 1 Sensor 2 what one is this


That cant be good.

that isnt good.

what do you mean that isent good

90k miles and no tuneup. Your trucks symptoms point it out fouled or bad plugs will make the truck run rich since its not burning the gas completely, bad response out of the engine, no acceleration. Its not going to cause SEVERE damage but its sure as hell not good for it. Can cause the cat to go bad, one thing you should see is black smoke out of the exhaust pipe when you rev the engine, or a strong gas smell. a tune up is in order and i would replace the o2 sensors to.

I agree as soon as I get off my dead ass I have to do a tune up as well. And I only have 85K and I know I need one. So more mileage better chance that you need one worse.

You need to do a complete tuneup ASAP and the code you are getting is actually for the 02 sensor just in front of the cat.

Cap and Rotor
AC Delco Platinum plugs ONLY!
PCV valve
Fuel filter
Air filter
Throttle Body Cleaning.