Camshaft Position Sensor, Code 340

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Old 04 Aug 2006, 10:48 am   #1 (permalink)
Charlie
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Default Camshaft Position Sensor, Code 340

It is a 2000 model Camry 4-cylinder, 115K miles. Yesterday afternoon
the engine stalled at driving speed for a couple of seconds. Lost power
steering in a turn, felt like the car slid sideways - but it was a dry
concrete road with good traction characteristics- after a very bad
moment everything was fine. Then about an hour later pulling out of a
mall parking lot into traffic the engine missed-hesitated-or whatever
again 3 or 4 times in quick succession while I was trying to enter and
merge with traffic. This time there was a check engine light. This
morning I went by AUTO ZONE and had the codes checked, no 'Check
Engine' light or driving problems this morning. The tester showed code
340 still in the computer, "Camshaft Position Sensor." Cost $249.95,
no other information.

The questions are: where is the sensor in the engine, is this likely
to be loose or corroded wiring connectors, how difficult will it be to
remove and replace if that is necessary?
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Old 04 Aug 2006, 09:59 pm   #2 (permalink)
qslim
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Default Re: Camshaft Position Sensor, Code 340

The camshaft position sensor is on the rear right corner of the head. If
you feel around the top backside of the timing cover you'll find it. You
might need a mirror to do a visual inspection, it's in there pretty well.
Check the connector and the wiring, too. Mice like to hang out back there
sometimes.

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Old 05 Aug 2006, 12:23 am   #3 (permalink)
johngdole@hotmail.com
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Default Re: Camshaft Position Sensor, Code 340

Cam position sensor is a very simple magnetic sensor like the ABS
sensor. Solid and nothing fancy. As suggested, wiring problem is
prorably the primary suspect. You may be able to reach the sensor on
the firewall-passenger side of the cylinder head. The sensor looks like
the one in Figure 1 for the V6.

For reference in another 5SFE engine (96), AutoZone' free online repair
guide on cam position sensor:
http://www.autozone.com/servlet/UiBr...3d8013edb5.jsp

Haynes manual suggested removing it and test it on the bench for proper
resistence (~1 K-Ohm). Do check the Haynes manual for your year of
Camry. If you need one you can probably pick one up from the junkyard.
partsamerica.com lists one for V6 for $100. Crank sensor is about $60
on rockauto.com (they don't list cam sensors), so $250 is kinda
expensive for a cam sensor.

Also, there are batches of bad ECMs in the Camry. Problems include hard
starting. If the tests on the sensor is OK then you may want to check
with the dealer on any goodwill warranty coverage on the ECM.


Charlie wrote:
> It is a 2000 model Camry 4-cylinder, 115K miles. Yesterday afternoon
> the engine stalled at driving speed for a couple of seconds. Lost power
> steering in a turn, felt like the car slid sideways - but it was a dry
> concrete road with good traction characteristics- after a very bad
> moment everything was fine. Then about an hour later pulling out of a
> mall parking lot into traffic the engine missed-hesitated-or whatever
> again 3 or 4 times in quick succession while I was trying to enter and
> merge with traffic. This time there was a check engine light. This
> morning I went by AUTO ZONE and had the codes checked, no 'Check
> Engine' light or driving problems this morning. The tester showed code
> 340 still in the computer, "Camshaft Position Sensor." Cost $249.95,
> no other information.
>
> The questions are: where is the sensor in the engine, is this likely
> to be loose or corroded wiring connectors, how difficult will it be to
> remove and replace if that is necessary?


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