'89 Tempo 2.3L won't accelerate
When I floor the accelerator it sounds as if it's getting way too much air, but the engine won't accelerate past 1500 rpm (estimated, don't have a tach). But if I slowly give it gas it will rev to redline (and beyond). Ran codes on the engine and got code 31. My Chilton's manual says "EVP voltage below minimum voltage". EVP stands for EGR Valve Position. But this car does not have an EVP on the EGR valve! Is there another meaning for code 31 that I'm missing? I did a tuneup with cap, rotor, wires, and plugs (they were extremely worn), but that hasn't helped. Stuck EGR valve? Clogged exhaust? Help!!!