Yes, the avg. guy can certainly Install a chip.

[Unregistered]

I was going to wait for a professional to install my chip(EAT) but after posting on this board [Can the avg. guy install a chip w/o any problem?], I got a vote of confidence from the response that I could certainly do it with in 45 min. And it took about 40 min. because I was nervous like hell not to fry the computer. I think I can install the chip now in 10 min, it is especially E-Z in the 535IM[10 min. might be too long, serious]. The chip I had in there[the previous owner] said "Dinan Engineering performance chip"- this is not a stock chip? I always read the response from people who have installed the EAT chip and said to myself that my car has similiar performance, no flat area throughout the RPM range, and it felt strong in all the gears. But everyone was just raving about this EAT chip so I said I just have to get a hold of one. If the previous chip was a performance chip then Mark's chip is much better in first and second gear if you change at max. rpm. The gas mileage is just a shade better and it seems like your car need some time to fully acclimate to the chip[ I will monitor the performance over the next week and a half]. Keep in mind I just put the chip in less than 24 hrs, so the jury is still out. Over all the E.A.T chip eats up the Dinan Engineer chip in all category.
Thanks Mark, and this is David the one whom you send the extra chip to- please get back to me so I know who you want me to mail it to.

[Unregistered]

Does anyone have a Dyno chart (rpm vs hp/torque) comparing the stock, EAT, Conforti and Dinan chips on the same platform? It might be interesting to see the hard numbers vs a "qualitative feel" of the car. Thanks in advance.

[BigD]

While I saw a slight increase in top end over my ripoff RD chip on the 535, the most amazing gain was the low end torque. The flat spot was gone. The engine feels much more versatile (as if it wasn't before). I haven't tried his M5 chip (may eventually, if I'm not broke after the current ordeal), but the 535 chip is definitely the best out there.

Enjoy!


I was going to wait for a professional to install my chip(EAT) but after posting on this board [Can the avg. guy install a chip w/o any problem?], I got a vote of confidence from the response that I could certainly do it with in 45 min. And it took about 40 min. because I was nervous like hell not to fry the computer. I think I can install the chip now in 10 min, it is especially E-Z in the 535IM[10 min. might be too long, serious]. The chip I had in there[the previous owner] said "Dinan Engineering performance chip"- this is not a stock chip? I always read the response from people who have installed the EAT chip and said to myself that my car has similiar performance, no flat area throughout the RPM range, and it felt strong in all the gears. But everyone was just raving about this EAT chip so I said I just have to get a hold of one. If the previous chip was a performance chip then Mark's chip is much better in first and second gear if you change at max. rpm. The gas mileage is just a shade better and it seems like your car need some time to fully acclimate to the chip[ I will monitor the performance over the next week and a half]. Keep in mind I just put the chip in less than 24 hrs, so the jury is still out. Over all the E.A.T chip eats up the Dinan Engineer chip in all category.
Thanks Mark, and this is David the one whom you send the extra chip to- please get back to me so I know who you want me to mail it to.

[Unregistered]

Glad to hear that an avg guy can install a chip. I own an M5 Touring '93 340hp and recently bought a chip that could increase to 370 hp... Eventhough I had clear installation guideline still something went wrong. After installation the car didn't start anymore. Offcourse I reinstalled the original, and guess what it didn't start either.
I still can't find out what's wrong.
Looking at other description on www.bmwe34.net/E34main/Upgrade/Chip.htm I noticed that there is no advise in disconnecting the battery. In my guideline it was suggested to do so?! Now when facing the same problem with the original chip I must have overlooked something that may have to do with the battery. Does anyone have a clue what I missed?

[BigD]

Who made your chip? I don't know anyone who makes a chip for the 3.8 (none of EAT, Jim C or Dinan do). If you put in a chip from the 3.6, that could explain your problem - could have fried the DME... I've even heard of people installing the chip backwards and it would still run fine afterwards (and it would even fire up with the chip backwards - just ran real bad).


Glad to hear that an avg guy can install a chip. I own an M5 Touring '93 340hp and recently bought a chip that could increase to 370 hp... Eventhough I had clear installation guideline still something went wrong. After installation the car didn't start anymore. Offcourse I reinstalled the original, and guess what it didn't start either.
I still can't find out what's wrong.
Looking at other description on www.bmwe34.net/E34main/Upgrade/Chip.htm I noticed that there is no advise in disconnecting the battery. In my guideline it was suggested to do so?! Now when facing the same problem with the original chip I must have overlooked something that may have to do with the battery. Does anyone have a clue what I missed?

[MarkD]

Who made your chip? I don't know anyone who makes a chip for the 3.8 (none of EAT, Jim C or Dinan do).


I made one for the 1995 3.8 with EWS that has run in the Canadian 3.8 track car. (That's the first stage of my testing)
It will soon be tested in a few cars in the USA.




If you put in a chip from the 3.6, that could explain your problem - could have fried the DME...

No, it just won't start the motor




I've even heard of people installing the chip backwards and it would still run fine afterwards (and it would even fire up with the chip backwards - just ran real bad).

There's NO WAY the motor will start with the chip in backwards. Did you see it or just hear about this? If the chip is in backwards, the cpu can not fetch instructions to execute. (plus it's address and data busses will be screwed up)

[MarkD]

Glad to hear that an avg guy can install a chip. I own an M5 Touring '93 340hp and recently bought a chip that could increase to 370 hp... Eventhough I had clear installation guideline still something went wrong. After installation the car didn't start anymore. Offcourse I reinstalled the original, and guess what it didn't start either.
I still can't find out what's wrong.
Looking at other description on www.bmwe34.net/E34main/Upgrade/Chip.htm I noticed that there is no advise in disconnecting the battery. In my guideline it was suggested to do so?! Now when facing the same problem with the original chip I must have overlooked something that may have to do with the battery. Does anyone have a clue what I missed?


You don't have to disconnect the battery if you keep the ignition off.

There is very little to go wrong. Did you install the chips the same way as the stock one? If you did then maybe you scratched a trace on the board and have cut through it? Look for any cuts on the PCB. Where are you located? Are you in the USA? I assume you are not. What's the number on your stock chip and how many pins does it have, 28 or 32?

I may be interested in a tester. I'm also interested to hear what type of chip you have and the cost, so I can price mine competitively. You can send me a direct email.

Thanks

Mark ( mark@dsylva-tech.ca )

[BigD]

Oh ok. But you don't sell one, so my question still stands as to who made his.

I know it doesn't make much sense to me either, but I believe it was Tim Collins who did this. He said the car just ran like crap, spitting black smoke. Then he reversed it and it was fine...

[ryan roopnarine]

if i extract the ecu with the battery connected, for only about 1 or 2 minutes, do i still lose settings?

[MarkD]

if i extract the ecu with the battery connected, for only about 1 or 2 minutes, do i still lose settings?


That's very hard to say as I have not tried that. You would be depending on a few capacitors in the DME to keep the Vcc high enough to hold the values in RAM, and I think that anything over about a minute will cause a loss of this data. But it really depends on how the circuit was designed and I did not analyse that section.

Mark

[Gary M]

Who made your chip? I don't know anyone who makes a chip for the 3.8 (none of EAT, Jim C or Dinan do). If you put in a chip from the 3.6, that could explain your problem - could have fried the DME... I've even heard of people installing the chip backwards and it would still run fine afterwards (and it would even fire up with the chip backwards - just ran real bad).

Also are you sure that you didn't bend some of the pins on the chip. Also hopefully you didn't get an static shock when you touched the board or chips. That would screw up everything too.

[winfred]

i've noticed if i dissconnect the computer and reconnect it it's cleared on our mt 2500 snap on scanner, all of the trim on the mixture is reset, i do this to help some cars run better faster after serious injection problems


if i extract the ecu with the battery connected, for only about 1 or 2 minutes, do i still lose settings?

[Unregistered]

Thanks for all replies. The chip was bought over Ebay in Germany from a company that is called HPE-Systems. You can still find all details on ebay.com: just enter search for 2459958472. Everything matches (Bosch number, version etc.) but no make is mentioned. The chip only indicates BMW E34 M5 340 PS, and uses a print with some intelligence to install under the Chip. HPE gives support too, but doesn't know what could or went wrong.
I can't find a name that rings a bell.

The support print needed to be welded into the masterprint because the cover won't fit after using the normal connector.
You can imagine when replacing the original again and welding again, it was no fun job to do. Specially when I found the same problem: no start.

Someone said I might have fried the computer: what does that mean? Do I need a new Bosch?
Stefan from the Netherlands

[MarkD]

Thanks for all replies. The chip was bought over Ebay in Germany from a company that is called HPE-Systems. You can still find all details on ebay.com: just enter search for 2459958472. Everything matches (Bosch number, version etc.) but no make is mentioned. The chip only indicates BMW E34 M5 340 PS, and uses a print with some intelligence to install under the Chip. HPE gives support too, but doesn't know what could or went wrong.
I can't find a name that rings a bell.

The support print needed to be welded into the masterprint because the cover won't fit after using the normal connector.
You can imagine when replacing the original again and welding again, it was no fun job to do. Specially when I found the same problem: no start.

Someone said I might have fried the computer: what does that mean? Do I need a new Bosch?
Stefan from the Netherlands

Hi Stefan,
I understand from your explaination that you have an encryption board in the socket and then the chip in this board. That can be a problem. It's quite possible that there is some solder bridging the circuit board now, so look for that. Hopeully you can get it running without buying a new DME. I would not buy a chip that requires the cover to be left off, it's not a good idea to run it like that as the DME has now protection now.

Mark

[Dick Schneiders]

It doesn't need to be disconnected. Does the M5 DME have a 2 circuit board, with the boards face to face like a sandwich? My 525i's have this type of board, but some cars only have a single board. With the two boards, you need to separate them and it can sometimes be difficult. It is possible that you either cracked one of the boards or somehow scraped one of the lines on a board and DME no longer works. If you can't see any damage to any of the circuits, than I don't know any way to tell other than trying a new DME. Mark, who makes the EAT chips, also repairs DME circuit boards. If that is the problem, you could send it to him.

Dick Schneiders


Glad to hear that an avg guy can install a chip. I own an M5 Touring '93 340hp and recently bought a chip that could increase to 370 hp... Eventhough I had clear installation guideline still something went wrong. After installation the car didn't start anymore. Offcourse I reinstalled the original, and guess what it didn't start either.
I still can't find out what's wrong.
Looking at other description on www.bmwe34.net/E34main/Upgrade/Chip.htm I noticed that there is no advise in disconnecting the battery. In my guideline it was suggested to do so?! Now when facing the same problem with the original chip I must have overlooked something that may have to do with the battery. Does anyone have a clue what I missed?

[Stefan]

Hi guy's, thanks a lot for all advice.
The sandwhich board I have is not so easy to open but I've bought a magnifying glass to see whether something is cracked or scraped or...
I'll let you know.
Regards Stefan

[MarkD]

Hi guy's, thanks a lot for all advice.
The sandwhich board I have is not so easy to open but I've bought a magnifying glass to see whether something is cracked or scraped or...
I'll let you know.
Regards Stefan


Stefan,

pull the top board up to about 45 degrees, then twist it back and forth sideways, while also pushing the part that is connected at the housing DOWNWARDS. There is a tonge-and-groove system there and you have to push down to release it.
(and don't forget to release those two tabs in the housing also)

Here's where you need a Hindu goddess with a few hands to help change the chip.
http://www.exoticindiaart.com/kali.htm

Mark

[Sampras]

Yes it is a very good upgrade and unbeknows to be there was a Dinan chip in there. The new chip is far superior but I have seen the little increase in MPG. Probably it is because I haven't been able to keep my right foot of the pedal.