87 Corolla lurches under light throttle - Toyota Nation Forum : Toyota Car and Truck Forums

HaveBlue · 03-09-2007, 09:07 AM

Hey all!
I have a 1987 Toyota Corolla. It runs fine under medium to heavy throttle and it runs fine at idle. But, when I'm just applying light pressure to the gas pedal to hold speed, it lurches like the engine is missing. It also lurches a little when I lift off the throttle completely and just coast while in gear. But it's not as noticeable as when I just lightly apply throttle to maintain speed. Any ideas?

retiredat44 · 03-09-2007, 10:05 AM

plug wires going bad, misfiring??

HaveBlue · 03-09-2007, 10:14 AM

Quote:

Originally Posted by retiredat44

plug wires going bad, misfiring??

Nope. New plugs, wires, cap and rotor. It doesn't miss at idle and it disappears when I press the throttle a little harder. It only does it when I lightly hold the throttle just to hold speed.

blb · 03-09-2007, 01:41 PM

Clean or replace the EGR valve.