p0606 code
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p0606 code
I get that the code is for pcm/ecm processor fault. My question, is there anything else I should check/repair first that could cause this code besides replacing the pcm/ecm? I've heard of others replacing it and still having issues due to underlying issues.
Fleet Owner
Joined: Aug 2010
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From: Reynoldsburg, Ohio
Whenever asking such a question you have to give us year make model etc. While DTC's might have common definitions that's no guarantee they're all the same across every year vehicle.
IF this is indeed a code referring to an ECM failure it doesn't necessarily mean the ECM itself has failed. Replacing anything without knowing for certain that's the one and only faulty component is foolish and far more costly than simply tracking down what's really at fault. Changing one part only to have the same issues has to be aggravating----it would me I konw
Wiring and connectors for the ECM have been known to cause the same symptoms and those need to be inspected. Does this vehicle still start and run? What is the driving experience like with that DTC?
IF this is indeed a code referring to an ECM failure it doesn't necessarily mean the ECM itself has failed. Replacing anything without knowing for certain that's the one and only faulty component is foolish and far more costly than simply tracking down what's really at fault. Changing one part only to have the same issues has to be aggravating----it would me I konw
Wiring and connectors for the ECM have been known to cause the same symptoms and those need to be inspected. Does this vehicle still start and run? What is the driving experience like with that DTC?
Thread Starter
|
New User
Joined: Jul 2014
Posts: 5
Likes: 0
Whenever asking such a question you have to give us year make model etc. While DTC's might have common definitions that's no guarantee they're all the same across every year vehicle.
IF this is indeed a code referring to an ECM failure it doesn't necessarily mean the ECM itself has failed. Replacing anything without knowing for certain that's the one and only faulty component is foolish and far more costly than simply tracking down what's really at fault. Changing one part only to have the same issues has to be aggravating----it would me I konw
Wiring and connectors for the ECM have been known to cause the same symptoms and those need to be inspected. Does this vehicle still start and run? What is the driving experience like with that DTC?
IF this is indeed a code referring to an ECM failure it doesn't necessarily mean the ECM itself has failed. Replacing anything without knowing for certain that's the one and only faulty component is foolish and far more costly than simply tracking down what's really at fault. Changing one part only to have the same issues has to be aggravating----it would me I konw
Wiring and connectors for the ECM have been known to cause the same symptoms and those need to be inspected. Does this vehicle still start and run? What is the driving experience like with that DTC?
Fleet Owner
Joined: Aug 2010
Posts: 21,253
Likes: 1,656
From: Reynoldsburg, Ohio
Looking at the Actron site for DTC's the only info shown for your P0606 code is "PCM Malfunction" which says nothing really.
Since the van runs most likely the PCM is just fine---why its throwing that code eludes me. I'd double check the multi-pin connector leading into and out of it, making sure the pins aren't corroded or bent ever so slightly.
The rough idle and loss of MPG's sounds suspiciously like ignition issues, when were the plugs last changed or inspected? Despite Ford's claim plugs will go 100K miles they really tend to crap out about 50K. Boots, COP's even the wiring harness connectors also need to be checked too.
Make sure the MAF is clean, the air filter is fresh and no vacuum leaks. If possible connect a dedicated fuel pressure gauge to the fuel rail, checking at idle and while driving around; try for a wide open throttle pressure reading too.
I'd bet within all those suggestions you'll find the issue.
Since the van runs most likely the PCM is just fine---why its throwing that code eludes me. I'd double check the multi-pin connector leading into and out of it, making sure the pins aren't corroded or bent ever so slightly.
The rough idle and loss of MPG's sounds suspiciously like ignition issues, when were the plugs last changed or inspected? Despite Ford's claim plugs will go 100K miles they really tend to crap out about 50K. Boots, COP's even the wiring harness connectors also need to be checked too.
Make sure the MAF is clean, the air filter is fresh and no vacuum leaks. If possible connect a dedicated fuel pressure gauge to the fuel rail, checking at idle and while driving around; try for a wide open throttle pressure reading too.
I'd bet within all those suggestions you'll find the issue.
Thread Starter
|
New User
Joined: Jul 2014
Posts: 5
Likes: 0
Looking at the Actron site for DTC's the only info shown for your P0606 code is "PCM Malfunction" which says nothing really.
Since the van runs most likely the PCM is just fine---why its throwing that code eludes me. I'd double check the multi-pin connector leading into and out of it, making sure the pins aren't corroded or bent ever so slightly.
The rough idle and loss of MPG's sounds suspiciously like ignition issues, when were the plugs last changed or inspected? Despite Ford's claim plugs will go 100K miles they really tend to crap out about 50K. Boots, COP's even the wiring harness connectors also need to be checked too.
Make sure the MAF is clean, the air filter is fresh and no vacuum leaks. If possible connect a dedicated fuel pressure gauge to the fuel rail, checking at idle and while driving around; try for a wide open throttle pressure reading too.
I'd bet within all those suggestions you'll find the issue.
Since the van runs most likely the PCM is just fine---why its throwing that code eludes me. I'd double check the multi-pin connector leading into and out of it, making sure the pins aren't corroded or bent ever so slightly.
The rough idle and loss of MPG's sounds suspiciously like ignition issues, when were the plugs last changed or inspected? Despite Ford's claim plugs will go 100K miles they really tend to crap out about 50K. Boots, COP's even the wiring harness connectors also need to be checked too.
Make sure the MAF is clean, the air filter is fresh and no vacuum leaks. If possible connect a dedicated fuel pressure gauge to the fuel rail, checking at idle and while driving around; try for a wide open throttle pressure reading too.
I'd bet within all those suggestions you'll find the issue.
Fleet Owner
Joined: Aug 2010
Posts: 21,253
Likes: 1,656
From: Reynoldsburg, Ohio
If that K&N filter has had too much oil applied that might also be an issue. Clean it, apply only the correct amount of oil or better yet replace it with the standard paper filter. In the right circumstance K&N are great---say off-road racing in the desert. Normal street driving they're just not that huge an advantage.
Understood on the fuel pressure checking---while its not that complicated if you're uncomfortable trying it leave it alone for now. No harm in being or staying safe.
Understood on the fuel pressure checking---while its not that complicated if you're uncomfortable trying it leave it alone for now. No harm in being or staying safe.
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