ECU question

[suds]

It's been a while since I posted (years in fact) and I need some help from the big brains here at TDIClub.

I need to find out if the ECU from my 99.5 Jetta will work in a 2001 Jetta. I think it has to do with the version of immobilizer that the car has. I believe my 99.5 was IMOBII and I think it's the same for 2001.

Are there any other details to consider in swapping the ECU?

Any help is appreciated.

 

[jcrews]

They are not interchangeable. 1999 has no IMMOB and the pin count is different.

 

[suds]

how about a 2000?

My engine blew on my 99.5 and it's cheaper for me to buy a lower mileage car than a rebuilt engine as well as fix all the other things that need fixing on my 99.5.

I want to keep my Rocketchip'd ECU if possible that's why I'm trying to find out what my options are for an ECU swap.

 

[jcrews]

a 99 ECM only works in a 99. Otherwise you have to replace the engine and central wire harnesses.

What happened to your motor?

 

[suds]

Not quite clear yet... it's bleeding oil after experiencing electrical power loss. It sounded like a mack truck when I came to a stop. I haven't pulled anything apart yet but a few opinions are a pointing to a catastrophic failure.

I priced out a rebuilt engine at $3900 and $600 for the re&re for a total for $4500. In my opinion it's too much for a 99.5 with 423,000km on the clock. I've got a couple leads on lower mileage Jettas that make more sense to me.

1999.5 GL - 189,000km - ~$5000
2000 GLS - 188,000km - ~$6000
2000 GLS - 171,000km - ~$8000
2001 GLS - 125,000km - ~$6000

Anyway, I was hoping to reuse my Rocketchip'd ECU but I may not do that if I can't find the right car to put it in.

 

[02tdivw]

I can take your ecu, if you wanna give away Sorry for your loss

 

[suds]

um... thanks but I'll keep it for now.

 

[jcrews]

You can get a good condition motor from any 1999-2003 part out much cheaper than that.

So you haven't pulled anything apart to see what's happening? Can you attach VCDS?