Engine Control - Hard Start/MIL ON/DTC P0340/P0345

Classification:
EC04-018

Reference:
NTB04-063

Date:
May 24, 2004

MIL ON WITH P0340/P0345 (CMP SENSOR) AND/OR ENGINE IS HARD TO START WHEN WARM

APPLIED VEHICLES:
2003 - 2005 Altima (L31) with the VQ35DE (V6) engine only
2004 Quest (V42)
2004 Maxima (A34)

APPLIED VIN's/DATES:
2003 - 2004 Altima: All VIN's/All Dates

2005 Altima built before:
1N4BL11E(*)5C 124304/February 26, 2004

2004 Maxima built before:
1N4BA41E(*)4C 896500/February 26, 2004

2004 Quest built before:
5N1BV28U(*)4N 350542/March 01, 2004

IF YOU CONFIRM:

A MIL ON with DTC P0340 (CMP Sensor Bank 1) and/or P0345 (CMP Sensor Bank 2),

and/or

The engine is hard to start when warm, but starts OK when the engine is cold.

NOTE:
"Hard start" is engine crank time that is longer then 3 seconds.

ACTIONS:

^ If you only have DTC P0340, replace only Bank 1 CMP (Camshaft Position) Sensor.

^ If you only have DTC P0345, replace only Bank 2 CMP (Camshaft Position) Sensor.

^ If you have both codes, replace both sensors.

^ For a "hard to start warm" incident, replace both sensors, even if you have no codes.

Refer to sections EC and EM in the correct Service Manual for sensor replacement information.





If replacement of the sensors does not solve your incident, go back to ASIST for further diagnostic and repair information.





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