Question about Chevrolet Cars & Trucks
Regen light comes on and next morning truck wont start
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Posted on Jan 02, 2017
SOURCE: code 1346 on 2002 toyota sienna
P1346 is the code for:
VVT Sensor /Camshaft Position Sensor Circuit Range/ Performance Problem (Bank 1)
If the code came on just after the timing belt replacement more than likely the sensor was damged in some way during the work. The sensor is located in the same area the mechanic was working in while changeing the timing belt. You should have this checked right away. A faulty cam sensor can also lead to the vehicle not starting.
Posted on Sep 04, 2009
Testimonial: "thanks sounds good"
The check engine light is a warning to let you know something needs your attention to be repaired I would try getting a jump. Could be a bad battery. Lets get the battery charged and tested. Cold weather will stop your car from starting if you have a weak battery. You dont need to tow the car just take the battery to Autozone or Walmart to be charged and tested for cca...cold cranking amps
Posted on Dec 11, 2009
A failing crank sensor sometimes won't set a code, but it will not prevent the check engine light from coming on.
I'd test it with an ohmeter both hot and cold just to make sure it's good, but think your problem is likely to be a connection between the ignition switch and the computer or a security system fault (if you have one). I'm not absolutely positive, but I believe that both years on that sensor are interchangable. It is also possible that some time in the past, the engine or flywheel was replaced and required the sensor to be changed along with that repair. If the vehicle was running fine before this problem arose then likely, whatever parts were installed were just fine.
In disconnecting and re-connecting the battery it can cause a small electrical arc that will temporarily "weld" a bad connection back together till vibration or temperature change causes the connection to come apart again. That can happen in the harness connections or even on the computer internal board. Neither are easy to find and you will need to check continuity of any and all power wires going into the computer (grounds too) in order
to locate the problem.
Chilton has good wiring diagrams and I'd definitely be using that manual as a guide. If I can find a decent diagram for your vehicle, I'll send it later, but I'm not sure I have one.
Good luck and be patient!
Posted on Jun 26, 2010
Testimonial: "Gotta love it, turns out that the engine block was from a 1994. Someone must've swapped out the engine..It turned out to be a bad Crank sensor. Thanks for all your help.."
p0172 is--system to rich ( bank 1). an oxygen sensor on bank 1, detected a rich condition ( to little oxygen in exhaust ) v6-v8 - v10 engines, bank 1 is the side of the engine that has # 1 cylinder. causes could be a vacuum leak in a hose, a dirty or bad maf sensor, or fuel pressure or delivery problems.
Posted on Sep 22, 2010
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