replacing the pcm

This is the place to ask questions about your engine components like cams, valves, pistons… just anything that is generally "engine" specific. This also includes questions about exhaust systems such as exhaust manifolds, piping size, mufflers, ect...
Post Reply
faithtomove
2GN Member
Posts: 67
Joined: Fri Jan 13, 2012 12:57 pm
Location: North LA

replacing the pcm

Post by faithtomove » Sun Jan 22, 2012 10:23 pm

Well you guys my car is still throwing me a p0601 code. It has affect on the way the car is running though. I just want the cel gone! If I disconnect the battery it goes away until I turn the car off and then its back. I may just need to relplace it. Any suggestions. Can I grab one from a JY and it be plug and play or what?
Image

chipdogg
2GN Member
Posts: 705
Joined: Thu Jul 08, 2010 10:10 pm
Location: Muscoda, WI

Post by chipdogg » Sun Jan 22, 2012 11:18 pm

Depends on if it has the Sentry security system. What year is it? What color is the key? If the head is thick and grey, you'll need to have a dealer reflash the PCM with the correct VIN. Since it's not easy to get to, you'll have to tow it to dealer, have them flash it with scan tool, and then it'll be drivable. I paid $40 or so to have dealer flash a PCM for me that was damaged due to some fucktard putting it on lower radiator support.
COME TO MY NEXT NEON MEET!!!

April 6th, 2013

viewtopic.php?t=64866

Donkeypuncher
2GN Member
Posts: 2183
Joined: Wed Mar 12, 2008 6:14 am
Location: Dallas, Tx

Post by Donkeypuncher » Mon Jan 23, 2012 12:04 am

I think you can remove the SKIM module and use a non-sentry pcm, but I may be wrong.

I know the 01 and 02 pcm are interchangeable, not sure about 00 though.

occasional demons
Junior Admin
Posts: 19399
Joined: Thu May 03, 2007 12:14 pm
Location: Ashland Ohio

Post by occasional demons » Mon Jan 23, 2012 5:43 am

'02 may not be compatible if it is an ATX. Not sure about how the '02 interfaces with the 41te TCM. If there is not SKIM, the VIN flash is not necessary to make it run. It will plug and play.
Bill
dblsg wrote:ya'll a bunch of post whores
epic

2001 Neon ES MTX with '02 R/T PCM
Help support 2GN!

faithtomove
2GN Member
Posts: 67
Joined: Fri Jan 13, 2012 12:57 pm
Location: North LA

Post by faithtomove » Mon Jan 23, 2012 9:00 am

Well my key is grey and it's an 01 so what can do?
Image

occasional demons
Junior Admin
Posts: 19399
Joined: Thu May 03, 2007 12:14 pm
Location: Ashland Ohio

Post by occasional demons » Mon Jan 23, 2012 9:50 am

chipdogg wrote:If the head is thick and grey, you'll need to have a dealer reflash the PCM with the correct VIN.
Plus the SKIM code will need flashed. The dealer will know what to do. Or like said, the SKIM module can be removed from the car, if you can find a non SKIM pcm. It must be at least unplugged, but the safer thing to do would be to totally remove it, so it doesn't get re connected. If a non SKIM pcm sees the SKIM signal, it will become permanently a SKIM pcm. It cannot be reversed.

So either a non SKIM or one already with SKIM can be used, if you want to keep SKIM, it just needs flashed at the dealer.
Bill
dblsg wrote:ya'll a bunch of post whores
epic

2001 Neon ES MTX with '02 R/T PCM
Help support 2GN!

faithtomove
2GN Member
Posts: 67
Joined: Fri Jan 13, 2012 12:57 pm
Location: North LA

Post by faithtomove » Mon Jan 23, 2012 10:24 am

Well I called my local dealership and it's 197 to flash pcm plus 200 for the part.
Image

User avatar
iThane
2GN Member
Posts: 1251
Joined: Thu Sep 30, 2010 5:33 pm
Location: Las Vegas, NV

Post by iThane » Mon Jan 23, 2012 12:26 pm

I was told to get my pcm's flashed by Flight Systems. They do the same
job but a lot cheaper.
Image
My Progress Log
Official "I'm Going to Drive My Neon till it Dies" Club #000104

occasional demons
Junior Admin
Posts: 19399
Joined: Thu May 03, 2007 12:14 pm
Location: Ashland Ohio

Post by occasional demons » Mon Jan 23, 2012 12:35 pm

Or search ebay. They will be flashed to the VIN you give them. Not sure how you would get the SKIM code tho.
Bill
dblsg wrote:ya'll a bunch of post whores
epic

2001 Neon ES MTX with '02 R/T PCM
Help support 2GN!

User avatar
Danteneon
Former Moderator
Posts: 9591
Joined: Thu Dec 20, 2007 5:13 pm
Location: Manassas, VA

Post by Danteneon » Mon Jan 23, 2012 12:41 pm

If you can prove ownership of the vehicle (title or registration with your name on it), then the dealer can get you the SKIM code.
If I could just figure out how to meld the Outback and the Neon into one car...

Image

chipdogg
2GN Member
Posts: 705
Joined: Thu Jul 08, 2010 10:10 pm
Location: Muscoda, WI

Post by chipdogg » Mon Jan 23, 2012 6:39 pm

$197? Call a different dealer. That may include installing it, or I hope so. That's 2-3 hours of labor cost.

Flashing it shouldn't take long.
COME TO MY NEXT NEON MEET!!!

April 6th, 2013

viewtopic.php?t=64866

occasional demons
Junior Admin
Posts: 19399
Joined: Thu May 03, 2007 12:14 pm
Location: Ashland Ohio

Post by occasional demons » Mon Jan 23, 2012 7:29 pm

Ebay link

As you can see, most do not come with the mounting bracket. You will have to transfer it to the replacement PCM. The ease of this step depends on how corroded the screws are.

Changing the PCM is not that bad, with a stock ride height, it is a matter of reaching under, and removing the two bottom screws, then reaching down from the top, and disconnecting the connectors, and then the nut on the frame rail.

(This applies to 2000 - 2002, not sure on 2003 - up. Bracket and connectors are different)

Be sure to disconnect the battery first, ign., and all else off. Which should be the state of things whenever the battery is disconnected. Large arcs when connecting/disconnecting are hard on the PCM and other electronics.
Bill
dblsg wrote:ya'll a bunch of post whores
epic

2001 Neon ES MTX with '02 R/T PCM
Help support 2GN!

chipdogg
2GN Member
Posts: 705
Joined: Thu Jul 08, 2010 10:10 pm
Location: Muscoda, WI

Post by chipdogg » Mon Jan 23, 2012 9:14 pm

2003-up have the 3-4 connectors pointing in a different direction, so it's a bit harder to get to them and unclip them properly. At least the 2000-2002 PCMs have the connectors pointing up so you can reach the damn things.
COME TO MY NEXT NEON MEET!!!

April 6th, 2013

viewtopic.php?t=64866

occasional demons
Junior Admin
Posts: 19399
Joined: Thu May 03, 2007 12:14 pm
Location: Ashland Ohio

Post by occasional demons » Mon Jan 23, 2012 9:23 pm

:lol:

My connectors stay on from the tension of the pins in the sockets. The connector clips were trashed when it got totaled. It's a good thing they are a pretty snug fit.
Bill
dblsg wrote:ya'll a bunch of post whores
epic

2001 Neon ES MTX with '02 R/T PCM
Help support 2GN!

chipdogg
2GN Member
Posts: 705
Joined: Thu Jul 08, 2010 10:10 pm
Location: Muscoda, WI

Post by chipdogg » Mon Jan 23, 2012 9:52 pm

On one of the 2002's I did a radiator support on last summer, one of the PCMs busted in half when the fire hydrant went through the lower support where the PCM was bolted. Luckily it was short enough to skip the hood, and didn't touch the trans. Non-skim PCM for $50, rad support, bumper, and lights from my parts car fixed it. And hours of drilling out spot welds. Fuck dat.

I learned my lesson and picked up another one a few weeks later.
COME TO MY NEXT NEON MEET!!!

April 6th, 2013

viewtopic.php?t=64866

srtjesse
2GN Member
Posts: 2968
Joined: Mon Jan 15, 2007 6:47 pm
Location: sin city baby

Post by srtjesse » Mon Jan 23, 2012 11:29 pm

I have a 02 ecu non skim for a mtx let me know if this works for you i can sell it for cheap
Image

2004 white dodge neon 2.4 DOHC swapped
2004 red dodge neon srt-4 gone :(
2000 flat black plymouth neon 2.0 DOHC swapped gone :(
2002 silver dodge neon parts car R.I.P
2000 green dodge neon parts car R.I.P

Donkeypuncher
2GN Member
Posts: 2183
Joined: Wed Mar 12, 2008 6:14 am
Location: Dallas, Tx

Post by Donkeypuncher » Wed May 23, 2012 8:21 pm

I can confirm that a non-skim ecu will work if you pull the skim module. The red skim light on the dash will stay illuminated, but everything works aside from that. This is for an mtx, but I'd imagine the atx would be the same.

OB
Former Moderator
Posts: 9686
Joined: Tue Nov 15, 2005 9:38 pm
Location: Bay Area, CA

Post by OB » Wed May 23, 2012 8:43 pm

There are ways to test a PCM to determine if it's bad, it's definitely not a part I would just swap out and cross your fingers that it works. Too expensive, and once you flash and install it there's no returning it to the dealer. If you don't have the knowledge or resources to diagnose it properly, spend the money to have a professional look at it and go from there.
-Derek

|Donate to 2gn|Feedback || OB's | GozziFab | All Business |


Donkeypuncher
2GN Member
Posts: 2183
Joined: Wed Mar 12, 2008 6:14 am
Location: Dallas, Tx

Post by Donkeypuncher » Fri May 25, 2012 10:13 am

All the threads I read about the p0601 said the ecu was bad needs to be replaced. How much is a diagnostic check from the dealer?

I picked a non-skim for $80 so I got off pretty cheap. I think a skim flash costs close to that, so I tried to avoid it if possible.

Post Reply

Return to “Engine”