3k stumble WITH high torque chip

[techspy]

Well it seemes the famous 3k stumble has returned. I have the high torque chip (#3) and have noticed the stumble starts to come back after the ecm seems to have had enough time to "learn" its adaptive tables. In the past I will reset the ecm and it goes away. But after a bit of time it comes back. I will reset again tommorow but was wondering if anyone has figured out a fix for this? I thought the high torque chip was supposed to take care of the stumble? Other than that the only other possible fix I have found was some info that someone fixed it by "venting" the hose for the wastgate with a perforated tube. Anyone have specific info on that procedure?

Thanks, John
94 S4
http://hometown.aol.com/oneshotcop/myhomepage/profile.html

>>> Edited by techspy on Monday 24th May 04:10

[karmavore]

I know I get it with #3. No solution yet. Haven't had time to really think about it. What does Sanj say?

[wcdeane]

I have the same stumble with the high torque chip...not very pronounced, but annoying, nonetheless.

Walt...'91 SE

[techspy]

I reset the ecm with Freescan and all is well again...for awhile anyway. Smooth as can be...I wish there was a way to lock the ecm in closed loop.

John
94 S4
http://hometown.aol.com/oneshotcop/myhomepage/profile.html

[squelch]

You don't really want to lock the ECM out of closed loop...
You want to lock it out of "Block Learn Mode"

[95lotus]

The 3K stumble on my S4S was greatly reduced after installing #3, but it tends to come back when the AC is on. You mention that it "has returned" which may be due to this.

Bill
'95 S4S

[rlearp]

There was a discussion on this over on the Esprit Yahoo list about 3-4 weeks ago. Of course, since that board is so horrible the information is essentially lost but I digress.

Of the posts just about everyone had the same experience. Put the chip in or reset it and the car feels great. Once the car "learns" or fills the ECU table up the stumble comes back. Mine is definitely this way - reset the chip and all is well for about an hour. Then it is back, just like before.

The S4s code does reduce it a little from the stock code, but the monster still lives. The best strategy is just to accelerate through it at full throttle on the way to 7k. You don't notice it much that way....

[NJGSX96]

rlearp said:

There was a discussion on this over on the Esprit Yahoo list about 3-4 weeks ago. Of course, since that board is so horrible the information is essentially lost but I digress.

Alan @ Roadfly.org made a nice search engine. I don't know how often it dump recent mail into the archive but he has over a year of the list on the site now because he used my email dump.

Search engine:

http://lotus.roadfly.org/turboesprit/search.php

or browse by month at:

http://lotus.roadfly.org/turboesprit

>> Edited by NJGSX96 on Friday 28th May 15:30