P0336 - Crankshaft Position Sensor A Circuit Range/Performance, FIX?
P0336 - Crankshaft Position Sensor A Circuit Range/Performance, FIX? Well haivng tons of trouble with my new engine. It starts and runs like ****, smokes a lot and smells of gasoline. Won't run without a keeping your foot on the gas, and won't rev past about 1000 rpm. Tachometer doesn't work either. I scanned the computer on got a P0336 code for the crank position sensor. My guess is the relector wheel is off slightly. Can this be fixed with a crank position re-learn? Or could it be a bad sensor? The sensor looks okay and so do all of the wires. Any help is greatly appreciated, need to have car running ASAP. Thanks!
No a crank relearn wont fix that likely 
Need to check the wiring & the sensor, have another CKP? Check the connection at it also .
All the grounds sound?
Usually that code sets because the CKP (crank) signal is weak. The no tach operation is another clue to just that.
The reluctor would have to be pretty far off, but I guess it is possible.
I just always check this stuff with a osilliscope to confirm a good signal, that is the only way IMO.
Need to check the wiring & the sensor, have another CKP? Check the connection at it also .
All the grounds sound?
Usually that code sets because the CKP (crank) signal is weak. The no tach operation is another clue to just that.
The reluctor would have to be pretty far off, but I guess it is possible.
I just always check this stuff with a osilliscope to confirm a good signal, that is the only way IMO.
Well the crank is from Eagle, so it wouldn't suprise me if its off. But I it runs, sort of, so it can't be off by that much. Wiring is all good, grounds are all on and tight. I suppose
I can replace the sensor but with my luck it won't fix anything
I can replace the sensor but with my luck it won't fix anything
Well there has to be something wrong with the crank signal into the PCM though. It only sets that code with CKP input problem. The PCM doesnt know the timing, or if the reluctor is off.
But if it has a poor input from the sensor it will set this code.
thats why it says range/performance. I would start there b-4 blaming the crank/reluctor.
But if it has a poor input from the sensor it will set this code.
thats why it says range/performance. I would start there b-4 blaming the crank/reluctor.
The thing is, the engine shop had to remove the reluctor wheel in order to put in some heavy metal into the crank to balance it. They said they put it back on in the right orientation but I think they may have not. Is there anyway to visually tell if the reluctor wheel is off without removing the engine. There isn't enough room to look through the crank position hole.
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Don't know about that but the CKP is in kind of a bad
place for damage during engine R&R, header installs, etc.
Sure the harness is not chafed or the sensor just mis-
installed (like not in quite far enough, so the chopper
signal is weak)? Do you see any electrical signal (that
would point to maybe the misalign) or is it just dead /
weak?
place for damage during engine R&R, header installs, etc.
Sure the harness is not chafed or the sensor just mis-
installed (like not in quite far enough, so the chopper
signal is weak)? Do you see any electrical signal (that
would point to maybe the misalign) or is it just dead /
weak?
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Verdad Gallardo Well, to cap off this thread, the cause was a reluctor wheel that was installed backwards. The car runs well now, no codes, and the tachometer works as well. Should be able to drive her tomarrow 
