Code P1000

crzyhrse99 · Jun 25, 2006

My car started missing the other day at random, mostly in the low rpm's. My CEL flashed on and off about 4 times on my way home from work and was missing badly. This morning I checked for codes with the DSP thinking that I probably had a plug misfiring but it didnt read that, as this has happened before.

I pulled a P1000 code which is OBD-II Monitor Testing Incomplete and that is the only thing that i came up with. What does this code mean? What should I check next?

Mike97gt · Jun 25, 2006

the P1000 code is a placeholder code. All it means is there was a code in the system and was erased. The EEC then uses the p1000 to alert any emmisions tester or tech that all the OBD2 tests have not run yet since the last code clearing.

You going to have to drive the car again untill you get the codes again..

BTW a flashing check engine light is a misfire.

CRZYHRSGT · Jun 25, 2006

svttech76 said:
the P1000 code is a placeholder code. All it means is there was a code in the system and was erased. The EEC then uses the p1000 to alert any emmisions tester or tech that all the OBD2 tests have not run yet since the last code clearing.

You going to have to drive the car again untill you get the codes again..

BTW a flashing check engine light is a misfire.

I've been having an intermittent code for the Cam Sensor (not regular enough to test the sensor) and every time I clear that code I get the P1000. Any other time it doesn't exist...

Mike97gt · Jun 25, 2006

a cam sensor issue can cause a misfire.

First try and see if you can get this to happen again and then post all the codes on here.. PM me if I forget to check on it.

CRZYHRSGT · Jun 25, 2006

Mine only comes on @ startup and then stays on, after which I have only seen a misfire once on each occasion. Under moderate acceleration it will hickup once and never again. The codes I've been getting are...

P0340 Camshaft position sensor
A Circuit (Bank1 or single sensor)

P1336 Crankshaft/Camshaft sensor
range/performance

I believe the 2 to be related. What other codes have you been getting crzyhrse99 (we might be barking up the same tree)?

crzyhrse99 · Jun 25, 2006

Yesterday was the only day that i checked for codes, and the one I stated above was the only one. I havent driven the car today, but I will see if i can pull any after I come home from work.

The hiccup you are talking about does sound like what my car is doing. It runs fine at idle and WOT but around 2-3k RPM/slow accelration it will start bucking a few times.

I'll post back tomorrow and see if it throws any.

Mike97gt · Jun 25, 2006

po340

P0340 - Camshaft Position (CMP) Sensor Circuit Malfunction The test fails when the PCM can no longer detect the signal from the CMP sensor. CMP circuit open
CMP circuit short to GND
CMP circuit short to PWR
SIG RTN open (VR sensor)
CMP GND open (Hall effect sensor)
CMP misinstalled (Hall effect sensor)
Damaged CMP sensor shielding
Damaged CMP sensor
Damaged PCM
Harness routing, harness alterations, improper shielding, or electrical interference from other improperly functioning systems may have intermittent impact on the CMP signal.

I would check the wirring and connector and if thats fine try replacing the sensor.
and there is no p1336.... are you sure this is the correct code.

CRZYHRSGT · Jun 26, 2006

svttech76 said:
po340

I would check the wirring and connector and if thats fine try replacing the sensor.
and there is no p1336.... are you sure this is the correct code.

My handwriting leaves something to be desired....the light is back on so I'll pull the codes again when I get home this evening...

Mike97gt · Jun 26, 2006

CRZYHRSGT said:
My handwriting leaves something to be desired....the light is back on so I'll pull the codes again when I get home this evening...

LOL mine too.

CRZYHRSGT · Jun 26, 2006

svttech76 said:
LOL mine too.

You're light's back on? J/K

I'm in parts and I write so many part numbers every day that you can literally watch the writing get worse as the day progresses. I've actually had parts that I've had to re-look up b/c I couldn't read my handwriting

CRZYHRSGT · Jun 29, 2006

Well, I can't duplicate the other code, buth 340 keeps popin' its head up. Called Ford last night and the friggin's cam position sensor is $29 and some change. I'm used to the parts prices on these European cars here at work. Sometimes I love havin' an American car.

Code P1000

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