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Unread 07-06-2010, 06:51 PM   #1
MarineOrdO
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Stolen PCM/ECM - What PN do I buy?

Jeepers,

New here so hope I did this right.

Scored an abandoned 00 Sport 4.0L A/T a few weeks ago - need to replace the computer, but have no idea which one was originally in it. Are the similar PN's the same or different for 2.5L/4.0L, MT/AT, Standard emission/Low emission, etc.

Also curious if it's just a plug and play (used from junk yard work?) or do I need to get it flashed to the VIN/mileage?

Prices range from $200 for a rebuild/flashed/warranty version to $50 or less on Ebay for some used versions.

Any advice appreciated.

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Unread 07-06-2010, 08:29 PM   #2
Mousejockey
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Id say go with the $50 one, if it fails you would probably have to pay at least that for the core on the rebuilt one.
But Id stick with the same yr, trans, engine on the used/rebuilt one
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Unread 07-06-2010, 09:15 PM   #3
Knuckelhead
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Does the engine exhaust have the 2 mini cats on the "Y" pipe?...
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Unread 07-08-2010, 03:01 PM   #4
MarineOrdO
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Mousejockey - you're right. I called one of the ECM replacement companies and they are charging me an extra $49.99 if I don't have the core to send them.

Knucklehead - no mini cats on the Y pipe coming down from the exhaust manifold. It was registered in Utah last if that has anything to do with the Standard Emission/Low Emission issue. I'm guessing the mini cats are for states like CA and such.
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Unread 07-08-2010, 04:05 PM   #5
Knuckelhead
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Originally Posted by MarineOrdO View Post
Mousejockey - you're right. I called one of the ECM replacement companies and they are charging me an extra $49.99 if I don't have the core to send them.

Knucklehead - no mini cats on the Y pipe coming down from the exhaust manifold. It was registered in Utah last if that has anything to do with the Standard Emission/Low Emission issue. I'm guessing the mini cats are for states like CA and such.
You don't have an ECM, you have a Powertrain Control Modual (PCM) and the one you buy will have to fit the non mini cat configuration for that specific year 2000 4.0L...
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Unread 07-08-2010, 08:31 PM   #6
MarineOrdO
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Semantics - got it. Thanks.
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Unread 07-08-2010, 08:58 PM   #7
masterwacker
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Originally Posted by MarineOrdO View Post
Semantics - got it. Thanks.
Actually not semantics. An ECU only controls the engine whereas a PCM controls engine and tranny. I thought the same thing until I was schooled on it too. Did you get a good deal on the TJ?
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Unread 07-10-2010, 02:23 PM   #8
MarineOrdO
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Seems to me that PCM, ECM and ECU are somewhat interchangeable acronyms when discussing the computer. There are companies out there that refer to the PCM (now that I know) as an ECM and ECU and if you only Google PCM you are not going to get all the information.

The 00 has got a 6" Skyjacker Long Arm Lift, 35x12.50 BFG MT's and the tub is Rhino lined. Solid body, no big dents, good paint, etc. Had to research who had the lien on the vehicle, but once I found it I contacted them and picked it up for $2K as the previous owner had defaulted and they were just glad to get something out of it and not have to deal with the recovery. Took a few phone calls and such, but it was worth it.

The cheap PCM's on Ebay seem to have disappeared so I guess I'll be going with a reman one with a warranty for the $200-$250 range.
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Unread 07-10-2010, 02:26 PM   #9
Jerry Bransford
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The only junkyard PCM you can use would be one from the same model year TJ, engine, and transmission as yours. If you go onto eBay or maybe Amazone.com now too, you can find remanufactured PCM sellers that will program one to work on your Jeep based on nothing more than your VIN#.
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Unread 07-10-2010, 02:30 PM   #10
MarineOrdO
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Thanks - I guess that answers it then. If its the same year, engine, trans. then its a plug and play without VIN programming. If not, then a reman with VIN programming is the answer.

Appreciate the assist gents.
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Unread 07-10-2010, 04:35 PM   #11
Knuckelhead
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Originally Posted by MarineOrdO View Post
Thanks - I guess that answers it then. If its the same year, engine, trans. then its a plug and play without VIN programming.
Some 2000 4.0L TJ's have the mini cats, some do not. The PCM has to match that setup also...
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Unread 07-10-2010, 08:19 PM   #12
MarineOrdO
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OK, I looked up that mini cat deal and saw the bulbed cats at the top of the Y pipe under the manifold. Mine definitely do not have those. A couple other entries mentioned that those Jeeps were Low Emission - CA types.

I found this PCM on Ebay - it says "Standard Emission (Federal)". I'm guessing that is the one without the mini cats. Is that a correct assumption?


00 JEEP WRANGLER ENGINE ECM: eBay Motors (item 110516122285 end time Aug-03-10 13:38:27 PDT)
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Unread 07-10-2010, 08:28 PM   #13
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Quote:
Originally Posted by MarineOrdO View Post
OK, I looked up that mini cat deal and saw the bulbed cats at the top of the Y pipe under the manifold. Mine definitely do not have those. A couple other entries mentioned that those Jeeps were Low Emission - CA types.

I found this PCM on Ebay - it says "Standard Emission (Federal)". I'm guessing that is the one without the mini cats. Is that a correct assumption?


00 JEEP WRANGLER ENGINE ECM: eBay Motors (item 110516122285 end time Aug-03-10 13:38:27 PDT)
You need to get the part numer from that PCM and match it with what DC sells...
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Unread 07-10-2010, 08:57 PM   #14
MarineOrdO
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Got it - thanks. Hopefully this Ebay seller will give up the info. If not, I'll hit the dealership to make some friends.
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Unread 07-10-2010, 09:09 PM   #15
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Originally Posted by MarineOrdO View Post
Got it - thanks. Hopefully this Ebay seller will give up the info. If not, I'll hit the dealership to make some friends.
Your welcome and post back as to what you find...
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computer , ecm , ecu , electrical , pcm , TJ

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