<![CDATA[Ecu rebuilding]]>Anybody sent an ecu in too be "rebuilt" or have experience. Every site has hit or miss reviews.

]]>https://wibimmers.com/topic/5231/ecu-rebuildingRSS for NodeWed, 16 Sep 2026 04:50:04 GMTWed, 28 Mar 2018 23:04:40 GMT60<![CDATA[Reply to Ecu rebuilding on Fri, 30 Mar 2018 15:08:35 GMT]]>@HipMF thank you for your input.

]]>https://wibimmers.com/post/90016https://wibimmers.com/post/90016Fri, 30 Mar 2018 15:08:35 GMT<![CDATA[Reply to Ecu rebuilding on Fri, 30 Mar 2018 15:07:50 GMT]]>Mercedes is the path less traveled when it comes to stuff like that, or if somebody figured it out they make you pay instead of sharing the information for the greater good. 

I am just going to buy a reman unit. There would be too much RnD.

With the warmer temps I want the car ready sooner than later.

]]>https://wibimmers.com/post/90015https://wibimmers.com/post/90015Fri, 30 Mar 2018 15:07:50 GMT<![CDATA[Reply to Ecu rebuilding on Fri, 30 Mar 2018 00:50:44 GMT]]>

Daggerty said:

Can you pull the info off of them?

There is two 8 prong proms that are for the immobilizer. It won't let the throttle body operate.

8-pin would have to be a serial interface. I could do it, but it's harder to do than the old parallel eeproms. I would most likely have to remove the part from the board.

Let me know if you have some links or something describing what you're trying to do. A lot of times security-related stuff like immobilizers is more complicated that just copying eeproms. I've read a little about EWS, and it's a complicated system that's specifically designed to be difficult to circumvent. I doubt the Mercedes system is any easier. In the case of EWS, the solution is essentially a "firmware update" that has the EWS disabled. Basically, if the firmware is a 64k ROM file, it means that someone found the 1 byte out of 65,536 that changed EWS=1 to EWS=0.

The hack for the Merc system could be different, but I'd like to understand what you're trying to accomplish before I put any work into it...

]]>https://wibimmers.com/post/89981https://wibimmers.com/post/89981Fri, 30 Mar 2018 00:50:44 GMT<![CDATA[Reply to Ecu rebuilding on Thu, 29 Mar 2018 20:32:55 GMT]]>

HipMF said:

I can burn eproms if you have files. Outside of that all I can do is give it a good visual inspection under a microscope. 

What's the actual problem? If this is the one that had the power hooked up backwards there could be a lot of f'ed up stuff on there...

Can you pull the info off of them?

There is two 8 prong proms that are for the immobilizer. It won't let the throttle body operate.

]]>https://wibimmers.com/post/89968https://wibimmers.com/post/89968Thu, 29 Mar 2018 20:32:55 GMT<![CDATA[Reply to Ecu rebuilding on Thu, 29 Mar 2018 17:46:42 GMT]]>I can burn eproms if you have files. Outside of that all I can do is give it a good visual inspection under a microscope. 

What's the actual problem? If this is the one that had the power hooked up backwards there could be a lot of f'ed up stuff on there...

]]>https://wibimmers.com/post/89945https://wibimmers.com/post/89945Thu, 29 Mar 2018 17:46:42 GMT<![CDATA[Reply to Ecu rebuilding on Thu, 29 Mar 2018 16:23:58 GMT]]>If you got into specifics @HipMF would be a good source.

]]>https://wibimmers.com/post/89939https://wibimmers.com/post/89939Thu, 29 Mar 2018 16:23:58 GMT<![CDATA[Reply to Ecu rebuilding on Thu, 29 Mar 2018 15:20:47 GMT]]>That would be nice if it was one of the mosfets. It's an epprom and I looked into getting the equipment to read and write onto them but it doesn't really pay for itself.

]]>https://wibimmers.com/post/89922https://wibimmers.com/post/89922Thu, 29 Mar 2018 15:20:47 GMT<![CDATA[Reply to Ecu rebuilding on Thu, 29 Mar 2018 14:51:20 GMT]]>They can be rebuilt.  I'm certainly no techno wiz when it comes to computer boards but I know that boards can have pieces fail and they can be replaced.  Replacing the injector mosfets on n54 PCM's is a fairly common occurence instead of replacing the entire PCM.  I don't have any experience sending one in but I have done it myself with very positive results.

]]>https://wibimmers.com/post/89920https://wibimmers.com/post/89920Thu, 29 Mar 2018 14:51:20 GMT<![CDATA[Reply to Ecu rebuilding on Thu, 29 Mar 2018 13:51:40 GMT]]>The rebuild service is $400

]]>https://wibimmers.com/post/89913https://wibimmers.com/post/89913Thu, 29 Mar 2018 13:51:40 GMT<![CDATA[Reply to Ecu rebuilding on Thu, 29 Mar 2018 13:40:13 GMT]]>This is for my mercedes the ecu is bad but want to explore other options before I pull the trigger on a $1100 ecu. 

There is companies claiming to rebuild them so basically a reman unit. The $1100 is for a reman a new one is $2400

]]>https://wibimmers.com/post/89912https://wibimmers.com/post/89912Thu, 29 Mar 2018 13:40:13 GMT<![CDATA[Reply to Ecu rebuilding on Thu, 29 Mar 2018 13:17:12 GMT]]>Define "rebuilt"
An ECU is not something where you generally need to service internals. 

If you are talking about getting things flashed out or having a new tune loaded, TRM tuning has always done me well.

]]>https://wibimmers.com/post/89910https://wibimmers.com/post/89910Thu, 29 Mar 2018 13:17:12 GMT