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2002 ECU Replacement


 
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Hazardsneon
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Post: #1   PostPosted: Thu Aug 10, 2017 7:42 am    Post subject: 2002 ECU Replacement Reply with quote

I have a 2002 MTX that didn't want to start the end of last week.

After finding the starter was shot and replacing it, it still wouldn't start so we towed it into the local dodge dealer.

I just found out yesterday that my ECU is shot.

They want to charge somewhere around $750 to have a local shop refurbish my ECU and I should be golden again.

I suggested that I could go to a local salvage yard, get a used one and have them flash my SKIM and VIN but they said they wouldn't do that. LOSERS...

However, I am still looking at buying a used one and having someone or buying a Witech Minipod II to reprogram it.

Mainly, I'm looking at used ECUs on eBay and they don't seem to be MTX/ATX specific. Are the 2002 ECUs Trans specific or do I need to find an MTX on?

Also, is there anyone in the greater Baraboo/Madison,WI area that would be able to reprogram my ECU?
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JeremyJ
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2002 Dodge Neon R/T

Post: #2   PostPosted: Thu Aug 10, 2017 7:50 am    Post subject: Reply with quote

I'm pretty sure they're specific to the transmission. Try www.car-part.com and specify manual in your search. You can also just take it to a different dealer and ask them nicely. Some don't mind flashing, but will still charge you something like $150.
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occasional demons
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2001 Dodge Neon ES

Post: #3   PostPosted: Thu Aug 10, 2017 8:20 am    Post subject: Reply with quote

If it is a non R/T or ACR*, both 2001 and 2002 will work for MTX pcm's.

If you have SKIM, unplug the module before installing the PCM if you find a non SKIM unit. Most base models are probably not SKIM.

If you didn't have SKIM, you wouldn't need any flashing done, or if you disable the SKIM, the non SKIM pcm will be plug and play. The VIN need not match to run the car.




*A 2001 R/T PCM would work in a 2002 R/T but you would lose a bit of performance.
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Donkeypuncher
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2002 Dodge Neon ES

Post: #4   PostPosted: Thu Aug 10, 2017 5:16 pm    Post subject: Reply with quote

I believe sidepipe87 can flash the ecu with a vin, I had him disable the skim on my ecu last year.

I might have an 02 R/T ecu in storage somewhere with the skim and key/ignition lock. Can't remember if there were any issues running an R/T ecu on the non R/T though.
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occasional demons
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Post: #5   PostPosted: Fri Aug 11, 2017 5:35 am    Post subject: Reply with quote

Donkeypuncher wrote:
Can't remember if there were any issues running an R/T ecu on the non R/T though.


Nope: Read my sig. Laughing

You will get codes for the MTV relay, but no CEL.

But again, there is no need to flash anything if you don't use SKIM. No sense spending $$ to flash just a VIN.

All I did was plug the '02 R/T pcm into my '01 ES, and never looked back.

Granted the SKIM feature has some communication error, so it won't lock down the PCM, but other than that, the VIN not being flashed hasn't stopped it from working either.
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Hazardsneon
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Post: #6   PostPosted: Fri Aug 11, 2017 7:58 am    Post subject: Reply with quote

My car does have SKIM so I will either need to find a non-SKIM or have the SKIM one that I find reprogrammed.

I'm planning to go to a local salvage yard this tomorrow and I will look for a non SKIM PCM.

However, I'm still probably going to buy a Micropod II from an online vendor like:
https://www.obd2buy.com/car-diagnostic-tool-obd2-scanner/165-witech-micropod-2-diagnostic-tool-v170301-for-fiat-dodge-jeep-chrysler-support-multi-languages.html

It seems like it would be a nice tool to have as long as it allows me to reprogram the VIN and SKIM (this is what I'm waiting for verification on)

It would also work pretty well on my wife's 09 VW Routan that is just a caravan that looks like a VW.
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occasional demons
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Post: #7   PostPosted: Sat Aug 12, 2017 9:06 am    Post subject: Reply with quote

Interesting. It would be cool if you don't have to log into dealer connect to use it to flash though.

Let us know, for the price, if it can program parameters in PCI bus and not just CAN, it would be an awesome tool for most of us, not so awesome for Sykes/others.

I would be more than happy to pay a one time $150 for it, IF it can do non CAN PCM's
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Hazardsneon
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Post: #8   PostPosted: Sat Aug 12, 2017 2:59 pm    Post subject: Reply with quote

I still havent heard back about wether i will be able to reprogram the vin and skim. I think im just going to buy it and find out.

I checked out two yards todat without luck. Lots of 01 and 02 but no MTX.

I did find an ecu on ebay for really cheap that has the same part number but i previously ask what transmission the car had and he said auto. Since the part number matches should it work even though the seller claims its from an ATX?
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2001 Dodge Neon ES

Post: #9   PostPosted: Mon Aug 14, 2017 4:38 am    Post subject: Reply with quote

2002 has the 41te ATX. The TCM is not part of the PCM like the 2003 to 2005, but I'm not sure what will happen without the TCM connected to it.

Unfortunately, I don't have a 2002 FSM to see what pin outs are different between the MTX and ATX PCM's.

If the ATX features can be switched off via a programmer, I don't see why it wouldn't work.

Otherwise you are likely going to have a CEL and codes for the missing ATX inputs.

Using a 2001 ATX PCM will get you a torque converter lock up solenoid code/CEL, but that's about it. If you can jumper a resistor at the PCM connector for the two pins that activate the TC lock up, you will get rid of that CEL.

The CEL will in no way affect the way it runs though. Not sure what different fuel and spark curves there may be, but it might not run quite as well with the ATX programming.

Or maybe it will run better. I wouldn't hold my breath on that one.

But if you can get a non SKIM 2001 ATX PCM for cheap, it will get you up an running in the meantime. Just a matter of pulling the column covers, and unplugging the SKIM, the swapping in the PCM.


If I remember, I can ohm out the spare TC solenoid I have to see about what resistor value you would need. I can also try to see what pins/connector on the PCM need to be jumper'ed.
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Hazardsneon
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Post: #10   PostPosted: Mon Aug 14, 2017 7:11 am    Post subject: Reply with quote

For now, stand by on checking the resistance of the TC and pinout of the PCM.

I probed further and the guy on eBay said that he "double checked" and the PCM did come out of a 5 speed. I hope he isn't just saying it to sell the PCM but I just bought it.

If it does happen to be out an auto I will also see if I can shut off the TC.

I also ordered one of the Micropod IIs from xcar360. However I might have came into a problem that I'm sorting out. I got an order confirmation from xcar360 from a sales email address from their domain. Then I got an email from an outlook.com address saying that my payment was hijacked. I checked my account on xcar360 and it says that I placed an order. Regardless I reported the payment to PayPal and I will see where things go from here. ugh!!

Thanks for the help so far!!!!
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Hazardsneon
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Post: #11   PostPosted: Tue Sep 26, 2017 8:10 am    Post subject: Reply with quote

Update:

I have been working with xcar360 since my last post to get my Micropod ii running.

The Micropod ii that I bought is a clone and in July, there was an update to the online system that blocks clones. Someone figured out that there is a work-around to get the cable working offline. I used the work around and finally made some progress except the software that I was given only supported down to model year 2004 and mine is a 2002. So I hit another dead end.

After asking for a refund, they are sending me a hard drive to put into a PC that will allow me to use the software completely offline and should allow me to connect to my car. It is coming from China and will take probably another week to get to me.

I hope that the next update that I post will be that I have my car running again.

On the positive side, it has given me a chance to do some well needed maintenance, like changing those valve cover/spark plug tube gaskets that seem to go bad all the time.
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BlackRoseRacing
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Post: #12   PostPosted: Tue Sep 26, 2017 11:23 pm    Post subject: Reply with quote

<<<<<knows someone who has V16 working properly without reg issues Rolling Eyes
Just make sure you are "NOT" online when using the software because the latest thing is there tracking anyone who connects "The Software" to the internet.....
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