joeshmo
New Member
Hey guys. I've gotta 98 civic LX with a 1.6L D16 SOHC. I recently bought this car. The first time I drove it, the engine was snappy and frugal and made a 120mile trip no problem. Now I am running into problems.
The engine has been running with a rough idle and hesitating on acceleration, especially when warm. It often misses and makes the car shudder or "rock" while driving, even over 2 or 3k rpm. I figured it was probably the throttle body so I cleaned the hell out of the TB and the IACV. I cleaned using NAPA TB cleaner and simple green as well as a tooth and scrub brush. I let it dry for 30 mins, found out I had ripped my TB gasket and called everywhere in a 30 miles radius looking for one. Noone had one so I ordered one that will be in tomorrow and I picked up some form-a-gasket. I applied the form a gasket to the torn area of my throttle body gasket, allowed it to get tacky and then re-installed. The first time I reinstalled, I accidentally forgot to plug in the TPS and obviously the car ran like an absolute can of garbage. I plugged in the TPS and it runs even WORSE! Now it stutters, misfires and stalls if you try to put ANY strain on the engine. It threw a CEL and I checked it using my ODB reader, I have codes P0103 or Mass Air Flow (MAF) Circuit High Input and P1399 (misfire detected.) Could the high MAF reading be coming from my vaccum leak (I'm assuming I have one due to the crappy "gasket")? Could that also be causing my rough idle, hesitation and lack of power? Any tips would be highly appreciated.
The engine has been running with a rough idle and hesitating on acceleration, especially when warm. It often misses and makes the car shudder or "rock" while driving, even over 2 or 3k rpm. I figured it was probably the throttle body so I cleaned the hell out of the TB and the IACV. I cleaned using NAPA TB cleaner and simple green as well as a tooth and scrub brush. I let it dry for 30 mins, found out I had ripped my TB gasket and called everywhere in a 30 miles radius looking for one. Noone had one so I ordered one that will be in tomorrow and I picked up some form-a-gasket. I applied the form a gasket to the torn area of my throttle body gasket, allowed it to get tacky and then re-installed. The first time I reinstalled, I accidentally forgot to plug in the TPS and obviously the car ran like an absolute can of garbage. I plugged in the TPS and it runs even WORSE! Now it stutters, misfires and stalls if you try to put ANY strain on the engine. It threw a CEL and I checked it using my ODB reader, I have codes P0103 or Mass Air Flow (MAF) Circuit High Input and P1399 (misfire detected.) Could the high MAF reading be coming from my vaccum leak (I'm assuming I have one due to the crappy "gasket")? Could that also be causing my rough idle, hesitation and lack of power? Any tips would be highly appreciated.