CivicNA

a friend has a 98 civic ex coupe with a jdm gsr motor. the guy who sold it to him told him it was an obd 2 motor except we can not find the crank angle sensor anywhere. and i can not see any extra wires from the distributor witch did plug right in to his stock harness. now the ecu it came with looked like a obd 1 ecu. the ecu was unusable in any event because it was an a/t tranny ecu. there was no way it was going to plug into his harness. it almost looks like they put an obd 2 distributor on an obd 1 motor. and said it was obd 2. any ideas to fix the problem?
we are throwing a crank angle code. as well as a vtec code. we currently have obd 2 p72 ecu pluged in.

boostedcivicsir

you are gonna get the crank angle code if there isnt a sensor there. not to sound like a smart ***. if i did sorry. as for the v tec code, need specifics. if there is no crank angle sensor, it probably isnt an obd 2 engine. will converting to obd1 help? the ecu you got if it is an obd 1 can be chipped. i have an obd1 in my EG and the ecu p.n. is for an automatic EX. but it has been chipped. hope this helps a little.

CivicNA

yeah i know about the crank code the vtec code is a generic vtec code vtec malfunction. we are going to try obd 1 conversion i think

CivicNA

bump

b19coupe

The crank angle sensor and TDC sensors are in the distributor, so if you are getting a code for the crank angle sensor, the problem is in the distributor or wiring. If, however, you are getting a code #54 (CKF sensor), you probably have an OBD1 motor. The CKF sensor (crankshaft fluctuation sensor) is basically a speed sensor for the crankshaft. It senses changes in crankshaft speed for misfire detection. The CKF sensor is located by the lower timing belt gear on the crankshaft, the wire for it comes up on the back of the engine by the water pump; that is where you should look for it. If the engine does not have one, chances are it is an OBD1 engine.