P0340 code camshaft position sensor
#1
Registered User
Thread Starter
Join Date: Sep 2010
Location: Walnut Creek, CA
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
P0340 code camshaft position sensor
OK searched but didn't find my anwser. Truck threw this code last September a few times, and I changed the CPS (camshaft position sensor), right before a trip to death valley. Spent 3 days trekking off road. Today after driving it to go get alignment done, it died at a stop light. Wouldn't start up right a away. It would turn over but not run. Check engine light was tripped, checked the scan gauge p0340 code. Eventually it started and I drove home, about three blocks from home threw the code again and died.
Timing belt changed 45k ago, assuming timing hasn't jumped
Anything else that could cause this code?
Need to check the resistance on the cps to see if it is within spec, don't think the sensor should go out so quickly. Have only done 2000 miles since swap, about 250 offroad
On an SC'd 3.4 this is a pain in the ass
Heading back to DV for 4 days of driving off road in a month and really don't want to break down.
Thanks Josh
Timing belt changed 45k ago, assuming timing hasn't jumped
Anything else that could cause this code?
Need to check the resistance on the cps to see if it is within spec, don't think the sensor should go out so quickly. Have only done 2000 miles since swap, about 250 offroad
On an SC'd 3.4 this is a pain in the ass
Heading back to DV for 4 days of driving off road in a month and really don't want to break down.
Thanks Josh
#2
Registered User
iTrader: (1)
![Red face](https://www.yotatech.com/forums/images/icons/icon11.gif)
Did you get the sensor from Toyota??
Cheap sensors are just that!!
Could be any place in the circuit .
rodent chewing
moisture where it shouldn`t be
dirty corroded connection
something in the ECM causing the code to trip which is a real pain to find and was the cause of all my problems
Cheap sensors are just that!!
Could be any place in the circuit .
rodent chewing
moisture where it shouldn`t be
dirty corroded connection
something in the ECM causing the code to trip which is a real pain to find and was the cause of all my problems
#3
Registered User
Thread Starter
Join Date: Sep 2010
Location: Walnut Creek, CA
Posts: 42
Likes: 0
Received 0 Likes
on
0 Posts
P0340 Code
Got the sensor from Autozone, "duralast" pretty good luck in the past with duralast.
Should mention this Check Engine light/stall only happened at idle in all occurrences.
How do you narrow the issue to or confirm it is the ECM?
thanks Josh
Should mention this Check Engine light/stall only happened at idle in all occurrences.
How do you narrow the issue to or confirm it is the ECM?
thanks Josh
#4
Registered User
iTrader: (6)
Join Date: May 2011
Location: Broomfield, CO
Posts: 214
Likes: 0
Received 0 Likes
on
0 Posts
Had a brand new Napa knock sensor constantly throw codes on my 96 3.4 brand new motor, ended up buying the Toyota one next day no more CEL. Those are under the intake manifold real B word to get to!
#6
Registered User
I hope you get it resolved but I've learned the hard way to just spend the money on Denso sensors (and spark plugs, water pumps, etc.) The savings on aftermarket parts are not real when you end up replacing them again way too soon.
#7
Registered User
Join Date: Feb 2014
Location: Pakistan
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
Error Code: P0340
Fault Location:
Camshaft Position (CMP) Sensor A, Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
- Wiring from/to Camshaft Position Sensor (CMP) faulty.
- Camshaft position (CMP) sensor faulty.
- Timing misaligned.
Possible Solutions:
- Check Wiring from, or to Camshaft Position Sensor.
- Check Camshaft Position Sensor.
- Check Valve Timing.
Fault Location:
Camshaft Position (CMP) Sensor A, Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
- Wiring from/to Camshaft Position Sensor (CMP) faulty.
- Camshaft position (CMP) sensor faulty.
- Timing misaligned.
Possible Solutions:
- Check Wiring from, or to Camshaft Position Sensor.
- Check Camshaft Position Sensor.
- Check Valve Timing.
Thread
Thread Starter
Forum
Replies
Last Post
Steven.m.paulk
86-95 Trucks & 4Runners (Build-Up Section)
3
07-24-2015 01:44 PM