toyota echo 1998

nickb2

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#1
Cam sensor signal not registering :eek: C am sensor is doing good on DVM!!These cars are built like strong men. I have seen these do 500000km easy,
this one gave me a crank and cam code. Looked at wiring, and think maybe bad ground or pcm. :idea:

Sorry forgot code, P1349 :thx I hate these pcm issues :ROFL

Any ideas 8)?
 

billr

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#2
That P1349 is "VVT System"? That is a pretty vague diag, problem could be the mechanicals/hydraulics of VVT system, oil pressure, control valve, wiring/driver for PCM control of valve; lots of possibilities. Are the CKP and CMP sensors Hall or VR? Testing with a DVM can prove one of those sensors is bad, but can't prove they are good. You would have to be able to test with vibration, heat/cold, varying frequencies, etc. and for an extended period to catch intermittents.
 

nickb2

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#3
Update, Sorry, may had wrong year, but found the problem, hope this links helps other, seems common for these cars. http://s3.amazonaws.com/2cp-images/question_images/44551/large.jpg

Thx Bill for good reply, this is now fixed, and it only took 15min to change :ROFL

BTW, did this in hail storm, you can bet my ratchet was going quick :ROFL
 

billr

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#4
So that valve spool wasn't shifting? Was the coil open-circuit?
 

nickb2

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#5
@billr, i think it was so jammed up from bad oil change frequencies and bad oil. Told dude to use better oil. Could see sludge on oil filler cap :idea: Did not want to spend time on this car in question and toyota dealer is down the street from my place, had said valve in hand, as I said before, this seems to be a known issue on these "vvt's" It was not shorted out, just so gunked up :eek:, I just replaced it. Hail was big like peanuts and pelting me, so did not want to screw around with it. Again, thx bill, fixed