C4 Lag
Thread Starter
4th Gear
Joined: Aug 2016
Posts: 4
Likes: 0
C4 Lag
I have a 94 C4 LT1 Car has been running great, Then two days ago something odd, thought i was imagining at first. It takes off from a stop normal cruises normal but when you accelerate say to pass someone, it feels like the accelerator pedal is not responding untill you step on it harder and it drops down a gear and then it takes off like a rocket. Kinda like all the midrange just went away. No miss no backfire nothing unusual , just no response in the middle. aside from that all is good. Suggestions?
Thread Starter
4th Gear
Joined: Aug 2016
Posts: 4
Likes: 0
Replaced fuel filter 6 months ago, O2 sensor, probably original. CK engine light works but have got no notifications, 131,000 miles on fuel pump, kinda thinkin that but thought they either work or don't. only have had the car 1 1/2 years. drive it daily.
Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 579
It could be the pulsater or a clogged sock the test will tell. O2s are normal maintenance and yours are over due only need the front two. You can pull codes with a paperclip see youtube. If your injectors are original talk to Jon at FIC. Also pull your vacumm line off your FPR and smell and look for fuel.
Last edited by antfarmer2; Aug 31, 2016 at 10:39 PM.
