a2low240
11-06-2006, 09:44 AM
Your PM's are full, so here's your reply.
I was wondering if you might have some insight on something that seems fairly common with the SR20DET. This one is specifically a Redtop, 2871R, stock cams, Freddy IM, Z32 MAF, 740cc PFC, stock exh. manifold, FMIC. Basically there is a momentary hiccup on throttle tip in. It smooths out if you keep the revs above 1500, but anything below it will hesitate to rev. I mean I can literally go WOT for a second and there is no response. I've searched around specifically on FA and have seen others have this type of issue, but I have not seemed to find a cure. TPS is within spec, ign. timing is dead on, car makes good power, I don't think it has anything to do with the accelerator enrichment on the Power FC. Have you ever come across this symptom?
Usually it is because the throttle enrichment setting on the PFC. The only time I have ran into this on a non-PFC car was when a bad knock sensor was pulling timing at throttle tip in not allowing the engine to rev up unless the throttle was slowly depressed. Either this or a faulty coolant temp sensor is to blame.
I was wondering if you might have some insight on something that seems fairly common with the SR20DET. This one is specifically a Redtop, 2871R, stock cams, Freddy IM, Z32 MAF, 740cc PFC, stock exh. manifold, FMIC. Basically there is a momentary hiccup on throttle tip in. It smooths out if you keep the revs above 1500, but anything below it will hesitate to rev. I mean I can literally go WOT for a second and there is no response. I've searched around specifically on FA and have seen others have this type of issue, but I have not seemed to find a cure. TPS is within spec, ign. timing is dead on, car makes good power, I don't think it has anything to do with the accelerator enrichment on the Power FC. Have you ever come across this symptom?
Usually it is because the throttle enrichment setting on the PFC. The only time I have ran into this on a non-PFC car was when a bad knock sensor was pulling timing at throttle tip in not allowing the engine to rev up unless the throttle was slowly depressed. Either this or a faulty coolant temp sensor is to blame.