hey guys my cars has a few days that is acting up, its a 94'z when i start to move forward and i punch the gas a lil bit hard the car kinda trys to choke, but it dosent. It just started doing this a few days ago. What can it be , can it be the fuel filter dirty? cuz its only when i try to punch on the gas pedal, i dont know when the spark plugs were replace, any suggestions?

 

could be your cat converter, whats it like under normal driving ? does the car shake bad ? has the engine light come on ?

 

after that the car drives good, oh yea it shakes a lil not that bad but only when in that moment when i punch the gas in, and no engine light

 

check your egr valve, if it's not working correctly, it's letting too much exhuast into the intake, and then, obviously, your car hesitates.

 

Check the EGR as mentioned. If it checks out OK then you should change the plugs and wires. Did the optispark distributor get wet, or even damp recently?

 

how do i check the egr? and well its beign raining the past few days, can it get get when its raining??? also new input. today I was driving on the highway and i was in 5th gear and the car was not rying to choke, but i change into 6th gear and i punch it and the car started to shake it shake bad. but only on 6th gear not in 5th, it also does the choking thing on 1,2,3 gear 4 its cool at least thats what i've notice thanks for the fast resposnd guys , I can also hear the exhaust making a wear sound when the choking takes place.

 

Take the EGR out and clean off al the crud on the valve and on the exhaust gas passage. From what you are describing, the car is running bad under load. On the LT1 this is usually caused by ignition problems. Spark plug and wires would be a good start.

 

thanks zpete, for helping me, i'll clean the egr valve , what should i clean it with? and whats the exhaust passage , is that were the valve connects to??

 

You can use a stiff brush and brake parts cleaner, but keep it off the wires. Under the EGR there is a passage, usually a tubethat goes to the exhaust manifold . Sometimes it gets plugged up with carbon deposits.

 

Ya, and if those dont work try the fuel filter. A question, what happens when you push in the gas not ful throttle, but still pretty hard? What RPMs? Also, maybe try checking if your air filter is clogged up (sometimes its the simple things).