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1997 Honda Civic P1336 Code: What It Means and How to Fix It

Model: 1997 Honda Civic Fault Code: P1336 Posted: 2007-05-19 22:00

I'm experiencing a P1336 diagnostic code on my 1997 Honda Civic, which reads 'Manufacturer Control Ignition System or Misfire'. The car runs smoothly with no noticeable misfires. I'm wondering what this error actually means and whether it's a serious issue. The P1336 code relates to the Crankshaft Position Sensor (CSF) system, specifically detecting interruptions in crankshaft speed fluctuations. This sensor monitors minute variations in engine rotation to detect any ignition misses or timing issues. Even if the car runs fine under normal conditions, this code can still indicate a problem with the sensor itself or its wiring. If you're experiencing this code and your vehicle performs well otherwise, it's likely due to either a faulty crankshaft speed fluctuation (CSF) sensor or damaged wiring harness connected to it. A loose connection, wire abrasion, or internal short can trigger the code without causing drivability issues.

Related fault codes
P1336
Comments (10)
Anonymous 2007-05-21 07:45

The Crankshaft Position Sensor (CSF) detects small fluctuations in crankshaft speed to determine if there are any ignition misses. A P1337 or P1336 code may indicate an interruption in the signal. First, inspect all wiring harnesses near the sensor for loose connections, fraying, or physical damage. If the car runs fine, the issue is likely a faulty CSF sensor or its associated wiring.

Anonymous 2007-05-21 18:37

Thanks! I need to locate where exactly the CSF sensor is on my 1997 Honda Civic — do you have any diagrams or links for that?

Anonymous 2007-05-22 07:47

Check out reliable automotive databases like alldata.com for detailed schematics and wiring diagrams specific to 1997 Honda Civics.

Anonymous 2007-05-24 15:31

I found the issue — a wire harness was rubbing against a serpentine belt and had developed a hole, causing an open circuit. After repairing the wire and securing it, the code cleared up.

Anonymous 2007-05-25 07:47

Thanks for sharing! This helps clarify how sensor issues can go unnoticed even when the car runs fine.

Anonymous 2007-07-12 10:48

c170a wrote: Thank you, I found the problem — the wire to the sensor was rubbing on a belt and cut a hole in it. I've had the same issue with my Honda. The CSF sensor is notoriously hard to access — located under the harmonic balancer. I had to resolder and properly secure the wiring. Honda makes this sensor very difficult to reach, especially during repairs. Fortunately, online resources now provide detailed trouble code guides for all Honda models. Best of luck with your fix!

Anonymous 2007-07-12 11:03

While many domestic engines used hall-effect crank sensors under the crank pulley, the 1997 Honda Civic places this sensor in a challenging location. Installing it in the bell housing is an option, but it's prone to damage during transmission removal. A magnetic reluctance sensor can produce AC voltage and may be easier to install, though access remains difficult.

Anonymous 2007-07-12 14:51

Agreed — engines like the 4.0L Magnum series were easier to service because they didn't require removing the harmonic balancer. I’d rather remove a balancer than risk damaging engine components during repairs.

Anonymous 2008-01-31 00:15

For 1997 Honda Civics, there is an emissions-related warranty extension available up to 150,000 miles for certain models — this may help if you're considering a repair or replacement under warranty.

Anonymous 2009-05-29 20:02

Help! I have a 1997 Honda Civic with a P1337 code (Sensor B Low Input). The car runs fine, but RPMs fluctuate between 1500 and 2000 when in park or neutral. Anyone know what might be causing this? It doesn't seem to affect driving performance.