Well, I've been trying to figure this out for the past 4-5 months with no luck what so ever. I have an 88 CRX with a b16 SIR I. When I bought the car everything worked great and it performed like a champ. After about 6 months, problems began occuring.
Problem: I've been experiencing a huge loss in performance. These are my symptoms:
What i've tried so far:
Any suggestions would be greatly appreciated. This problem has frustrated me to the point where I just don't want to throw down more money replacing things unless I can isolate the problem.
Problem: I've been experiencing a huge loss in performance. These are my symptoms:
- Bogging at full throttle. The bogging usually happens at low RPMs when I push my foot on the gas quickly. It also occurs at high rpm after vtec kicks in. The bogging will only occur when I am at full throttle. If I let up on the gas while it is bogging, it will immediately stop bogging and rev like normal.
- Bogging at constant throttle. If I am on the highway and have the throttle at a constant position, after a little while it will start slowly bogging and I will start losing power until I push on the gas just a little.
- Backfiring. If I let up on the gas and the rpms begin dropping, the car will backfire occasionally. This used to not happen at all before all of these bogging issues started happening.
- Hesitation. The car will sometimes hesitate when accelerating.
What i've tried so far:
- Replaced o2 sensor
- Replaced fuel filter
Any suggestions would be greatly appreciated. This problem has frustrated me to the point where I just don't want to throw down more money replacing things unless I can isolate the problem.