Gen 2 engine problems????


New Member
just bought a 93 integra idk what trim model exactly, but its got power everything, cruise control etc.....sunroof. but it has the 5spd trans. and the b18a1. i was wondering if there were any problems or issues with the motor from that year. mine has this weird idle thing where it fluctuates in rpm. jumps from about 600 to 800 maybe. i also experience power loss after i fire it up and drive right away. id be driving in 2nd gear doing about 25, and the motor will just drop back down to idle. but ive noticed that this stops happening after it warms up. also did integras come with power-steering pumps, because mine doesn't have power-steering. also when I'm driving in town i get exhaust fumes in the cab. idk if its a exhaust leak or if it doesn't have a cat. it to low to get under there and check it all out for sure.
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New Member
If you haven't fixed this yet, try changing the O2 sensor. My car (b18a1) started the loss of power thing when cold. Shop couldn't figure out why. A little while later, I had to smog the car and it failed miserably. Lot's of people said to change the cat and a whole bunch of other stuff. I wanted to change one thing at a time starting with the less expensive or easy stuff first. Started by changing the MAP sensor (easy, but expensive), still failed smog. Then changed the O2 sensor (inexpensive, but hard to change after 31 years in there.) Passed smog with flying colors. Then also noticed that the cold engine performance problem went away(!). I think it must've been the O2 sensor not giving the ECU the right readings despite back-pinning the sensor and seeing that the sensor was responding to O2 changes. YMMV.