500E Chip - Page 2 - PeachParts Mercedes-Benz Forum

300EVIL · #16 09-14-2006, 05:31 PM

Quote:

Originally Posted by 2phast

I suspect since the 92 model already had the wot enrichment....

Yes that's correct.

Quote:

Originally Posted by 2phast

I did too many back-to-back mods to be sure if there was any power gain or not...

Care to share any secrets?

gsxr · #17 09-14-2006, 08:42 PM

The 1992 has WOT enrichment, and from what I understand, no chip can enable WOT enrichment on a 1993/94 LH module. I tried a 1994 RENNtech chip in my 1994 LH module and it still made no more power. A stock 1992 LH module gave a repeatable, measureable power gain over either 1994 setup, every time.

Beastie · #18 09-14-2006, 09:11 PM

I will wait to do the chip but will move on some of the others I have garnered from this site. Thanks for you help from everyone. I am still keeping my eye open for another E500/500E.
Thanks
Alan

2phast · #19 09-15-2006, 07:12 PM

No secrets. K&N drop in filters, LH ecu chip, vented headlight wiper panels, complete exhaust (high flow 2 into one Magnaflow cat, 3" pipe all the way back, no res and free flow Magnaflow muffler).

Thats about it for the M119 for performance mods, unless you want to go with forced induction or N20 and I am considering the latter.

300EVIL · #20 09-15-2006, 07:52 PM

Quote:

Originally Posted by 2phast

high flow 2 into one Magnaflow cat, 3" pipe all the way back, no res and free flow Magnaflow muffler.

Cool, thanks for the info. Any chance you could post a sound clip of your exhaust? I would love to hear what that sounds like!

2phast · #21 09-18-2006, 11:16 AM

Will see what I can do.

nenad16 · #22 04-12-2007, 02:42 AM

I just installed an ebay chip in my 1994 E500. what a mistake. the car has no low and mid range power at all. also, the cold start enrichment is gone. the check engine and ASR lights are always on, even after I clear the DTC's, which are NO CAN COMMUNICATION WITH EZK AND CRUISE CONTROL. I put the stock chip back in, but still the same. I installed it properly, used gloves and was properly grounded. so far Im thinking my ECU is damaged somehow. any comments or similar experiences?

nenad

DRICHFL · #23 04-12-2007, 03:46 AM

It is possible that the chip may have damage your Ignition Module. I doubt that you LH module is damage.

gsxr · #24 04-12-2007, 10:09 AM

It's possible you had the incorrect chip, but since re-installing the original chip didn't fix it, there's something else wrong. Pull the LH module again (with the battery negative terminal disconnected), and re-seat it FULLY. It really has to be pounded down hard. I found that if I didn't have it 100% seated, I would get ASR/ABS lights and the car wouldn't run right. Re-seating the LH module fixed it. It's worth a try. Also check the plastic fuses on the Basic module in the CAN box, make sure they are all good.

I have never heard of the CAN system damaging the EZL (ignition module). I thought the EZL either worked or it didn't, no in-between? Anyway, I have a good LH module from a 1994 E500, with stock and RENNtech chips, for sale if you're interested. You'd better hope the EZL isn't fried, those are insanely expensive new ($2-$3k) and very, very hard to find used. I may have one available if yours is bad...

nenad16 · #25 04-12-2007, 05:45 PM

Im constantly getting codes:
7 - CO potentiometer open circuit(this one went away after DTC clearing, others are still present)
13 - CAN communication problem. no communication from cruise control/electronic accelerator.
18 - CAN communication problem. no communication from EZL/AKR ignition control unit.

I dont think the EZK is bad, I do have another one I can try, though. Im focusing either on the LH unit or the throttle body. I literally have to floor the gas pedal for the car to get moving. also the transmission wont shift past 3rd gear.

nenad

aldedmon · #26 04-15-2007, 03:22 PM

Did you ever resolve this. I get this limp home mode functionality every now and again. Resolves by restarting the car

DRICHFL · #27 04-17-2007, 09:56 AM

The EZL ignition module may fail intermittently. The EZL has a paste that was install by the factory and placed on the bottom of the unit to help prevent the unit from conducting extreme heat that travels from the chassis metal frame. In addition, the EZL is also cover with a lite spray film to help keep it from conducting extreme heat which is produce by the engine. In my case it was two factor which cause my EZL to fail. First the ebay chip I bought and place correctly in the LH module or secondly, the extreme heat from Florida's climate that over time cause damage to my EZL module. Once I place the ebay chip into my LH module I got the same result you got and later after months of diagnostics it was the EZL failing. Once I remove the ebay chip and place the chip with the factory original chip along with a new EZL my M119 came to life with no more idle issue.

The M119 engine seated into the W124 chassis produces a lot of heat. I have had to change plenty of items under the hood due to age and heat damage. I had contact the guys who sold me the chip and they told me that the chip as never failed a customer.

Base on the experience I had with my EZL it is possible for it to work properly into it begin to heat up and then it starts to go haywire.

gsxr · #28 04-17-2007, 04:50 PM

Minor correction: The paste under the EZL is a thermal transfer compound, which helps tranfer the heat generated by the EZL to the metal fender, so the fender acts as a big heat sink, to cool the EZL. It's important to clean the surfaces and re-apply the compound when replacing an EZL.

http://www.elexp.com/che_1978.htm