I have a 92 Sonoma 2.5L 5 speed standard, and even when i go on a long drive the engine will race when i engage the clutch to slow down at an intersection. It will continue to race even when i pull off on the shoulder and stop. Checked throttle linkage,Vacuum hoses, replaced the air filter, and pvc filter. I also used my code reader which gives me a code 12 only to indicate that everythings ok. Any idea as to what might cause this?
Thanks in advance, Kev