Engine Performance problem
1995 Acura Integra 4 cyl Front Wheel Drive Manual 124000 miles
Hey, 95 Acura Integra stick shift with original b18b1 engine with problems.
1. Very low power, I need to rev up to about 1000-1500 rpm to release clutch in first gear slowly. Any lower than that the rpm will immediately bog down and jump the car forward and back. (I pretty much need to ride the clutch for it not to jump).
2. Recently I noticed a slightly higher rpm at cruising speed (~300 more) and less dip of rpms between shifts (It would drop about 700 rpm but now only drops about 500). Therefore to go the same rate of typical acceleration the gas pedal is pressed a bit more. (Basically my engine is working harder).
3. Speedometer does not work. At first it would jump up and down about 10 percent of the time while driving but now it doesnt move at all. My car is obd1 so my check engine light displayed a code saying my wheel speed sensor isnt working. I took a look at it and there was a little metal piece to fit inside missing. I went to the junkyard and grabbed one from the same engine. After doing that the speedometer shows too high (I will be cruising at 40 and it would show about 60-70) I could actually see my rpm (in third gear) and my speedometer move at the same rate and at the same position. So I just went to buy a rebuilt wheel speed sensor and put that in. Same thing, it shows too high. The same as with the old sensor.
4. Air filter is an aftermarket filter (one of those from auto zone) on the throttle body. When I bought the car air went straight in the intake manifold through the throttle body. Honda had told me this engine (or any hondas) (CORRECTION: DO NOT) use a MAF but I see wires and connections that are NOT connected to anything hanging around near the spot where the OEM filter would have been had there been an OEM air hose as well. What's supposed to be there?
p.S. The mileage sucks for a 4 cyl 1.8 liter engine and I'm talking about less than 20 mpg
I am a certified Aviation maintenance technician and perform all work on my car myself, so don't be afraid of technical terms. I understand cars degrade in performance through time, but something so simple can prevent the car from working while thinking something else major was a problem.
Tuesday, December 1st, 2009 AT 7:18 PM