Code P0343 C

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Sep 30, 2002 | 09:22 PM

fairway

Thread Starter

Racer

Joined: Dec 2000

Posts: 395

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From: Lee's Summit mo

Code P0343 C

Does anyone know is this code means P0343 the car is hard to start sometimes you have to turn the key like two or three times before it will start it just started doing this and the other code is a P1571 both on PCM

Sep 30, 2002 | 09:45 PM

kwik8racr

Drifting

Joined: Mar 2001

Posts: 1,270

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From: Rockford IL

Re: Code P0343 C (fairway)

PO343 = CMP sensor high voltage - B

P1571 = ASR desired torque - C

Sep 30, 2002 | 09:49 PM

fairway

Thread Starter

Racer

Joined: Dec 2000

Posts: 395

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From: Lee's Summit mo

Re: Code P0343 C (fairway)

What is the cause.

Sep 30, 2002 | 09:58 PM

belair55

Racer

Joined: Aug 2002

Posts: 402

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From: Central IL

Re: Code P0343 C (fairway)

If I'm not mistaken P1571 is a '97 only code for normal operation and it is set continuously. Someone please correct me if I'm wrong.

Sep 30, 2002 | 10:29 PM

fairway

Thread Starter

Racer

Joined: Dec 2000

Posts: 395

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From: Lee's Summit mo

Re: Code P0343 C (fairway)

Yes it is a 97 wounder why it is hard to start not all the time just somtime.

Oct 1, 2002 | 02:55 AM

Richin Chicago

Safety Car

Joined: Sep 2001

Posts: 4,411

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From: Wilmington NC

Re: Code P0343 C (fairway)

Quote:

This is a code indicating the cam positon sensor, or assciated cabling and connections is intermittent or failed. I'm not sure how the PCM uses this information but it can't be good to be losing it.

Oct 2, 2002 | 12:46 AM

fairway

Thread Starter

Racer

Joined: Dec 2000

Posts: 395

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From: Lee's Summit mo

Re: Code P0343 C (fairway)

Anyone else :confused:

Oct 2, 2002 | 11:33 AM

best_vette_yet

Instructor

Joined: Apr 2002

Posts: 249

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From: Broken Arrow Oklahoma

Re: Code P0343 C (fairway)

Your starting problem has to do with your P0343 code. That code is for the cam position sensor. If you only had a crank postion sensor it would not know if you were on compression stroke or exhaust stroke. The Cam position sensor tells the computer which stroke your on. For your coils to know when to fire the car needs to know when you are comming up on the compression stroke.

Your computer should store freeze frame data on this sensor. You will need a "auto tap" or "tech II" to read the data.

Good Luck