I'm a 4th gen Accord fan but have a friend with a 1997 Accord 4cyl F22Bx (non-vtec) OBD2. His car has been randomly shutting off and now will not start back at all. I pulled the codes and found the following three:

P0336 - crankshaft position sensor A circuit range/performance

P1361 - top dead center sensor fault (intermittant signal)

P1381 - camshaft position sensor fault (intermittant signal)

I'm pretty sure the cam position and tdc sensors are the same and are located in the distributor. Where is the crank sensor located on this engine?

Also: how likely is it that three sensors would go bad at the same time? The timing belt was replaced about 15k ago but is it likely it could have skipped a tooth?

As far as the cam sensor inside the dizzy, I know there's likely to be oil leaking in there as the 4th gen Accords with the same dizzy setup have the same problems. Any help appreciated.

 

The cylinder position sensor (i think that this is the same as the cam position sensor) is in the distributor.

The TDC and crankshaft position sensor are mounted under the timing belt cover (they were in the distributor up until the 95 accords).

There is a 4-pin connector that leads to the TDC and crank sensor. You may want to unplug it and check that the connection and pins are clean. EDIT: Make sure that the wire harness isn't pinched where it goes under the timing belt cover.

For the cylinder position sensor, check the plugs going to the distributor. Also pull the cap and see if there is a oil in there.

 

i believe the CKP sensor is located inside the t-belt lower cover ..

make sure that the wirings are ok ,,chk for water in the plug i have seen that a couple of times ......... if ok,,

Engine off.. unplug the connector ,, 4 wires,,,green ,, red ,, blue,, white ..get an multimeter and chk resistance between blue and white,,,, and than green and red ,, resist should be between 1850 and 2450 ohms ,, if out of range replace the sensors

do that and let us know

 

Thanks for the quick replies and good info, it'll be Saturday before I will have time to get my hands dirty but will keep you updated.

 

The sensors at the crankshaft pulley should be the CKF & TDC, so one of your errors is for the TDC sensor.

P0336 is the CKP sensor, in the distributor.
P1381 is the CYP sensor, in the distributor.

Check wiring plugs at the distributor, and take off the distributor cap. Red-brown dust inside the distributor usually means death of the distributor bearing, so then get a new distributor.

Check the wiring plug for the crank sensors. The crank sensors are #17, & the plug is down low on the back of the engine, kinda strapped to the lower timing cover.

 

i believe that the sensors at crank pulley are the CKP AND TDC,,

 

Desert's probably right. But that still leaves P1381 (CYP sensor) in the distributor. Strange that sensors in 2 different locations would have problems together??

 

I'm going to check electrical circuits for all three sensors. The CKF & TDC sensors are behind the timing cover at the crankshaft and are purchased as one unit. The CYP is in the dizzy and I'm pretty sure a bad CKF/TDC will make the ECU think the CYP is also bad so I doubt the CYP is actually bad.....we'll see.

 

Checked the resistance and got the following:

red/green = 2100 ohms
blue/white = 105 ohms

blue/white is the one on the rear of the block (I think the crank position sensor), but replaced the 2-sensor assembly with one from Autozone and after a bit of cranking to get alot of fuel out of the cylinders, the car started and runs fine now.

Thanks alot for your help!

 

I just bought a premium 97 cl with a 3.0. We did some services to it and have not been able to drive it for the major problem with this p0336. I cannot find a fault in the system. It is eluding me and I wonder if it only happens when its warmed up. will acceperate slowly to 3k then shift hard or stall. then restart and barely move. Its all torn open right now until I got the answer.