X35d racechip - instant check engine light?

[Ray knight]

Installed the racechip and instantly got the drivetrain malfunction warning and check engine light on the dash. How can i clear it? Will it go off on its own?

[paicapo]

Originally Posted by Ray knight

Installed the racechip and instantly got the drivetrain malfunction warning and check engine light on the dash. How can i clear it? Will it go off on its own?

check out this post:

http://f15.bimmerpost.com/forums/sho...light=racechip

[paicapo]

Originally Posted by Ray knight

Installed the racechip and instantly got the drivetrain malfunction warning and check engine light on the dash. How can i clear it? Will it go off on its own?

heres another one about a bad installation of the chip causing all kind of problems:

http://f15.bimmerpost.com/forums/sho...ghlight=tuning

[opasha]

Originally Posted by paicapo

heres another one about a bad installation of the chip causing all kind of problems:

http://f15.bimmerpost.com/forums/sho...ghlight=tuning

Mine was the TMAP harness issue. That whole setup was totally incorrect and not useable. I used the MAF sensor harness instead and installed just like bluelodge400 without issues. You can't compare his engine to my engine because he has one plug as opposed to two. He needs to show pictures of his setup and describe it in detail for us to help him.

My recommendation, remove everything. Clear your codes and start over. This particular chip has the MOST discussion among the members because it's the most popular RaceChip tune. 42pilot might be able to help you out because he seems very knowledgeable regarding all the MAPS (there's 89 apparently). Maybe your map settings are too much for the engine, but to get a drive train error...I feel it's definitely harness related.

[Ray knight]

I figured it out. I forgot i had a scan tool! Said common rail error. I found i had not fully connected one of the connectors. Cleared the code and that was it. So now its working fine! Nothing noticeable yet but only 2 miles driving with the chip installed. I expect to drive a few tines before it learns.

[Ray knight]

Turned it up to the "E2" setting and its a beast! Pulls very hard down low and respectably at speed. I would say it feels as strong as my '13 X50i 0-30 at least but after that its pretty flat but feels stronger than before for sure. I am really liking the diesel. Very fun. Tons of squirt off the bottom then just super smooth.

[42pilot]

Experiment with the settings. Remember, turning it up is not linear as RaceChip alters fuel and fuel timing at different points in the RPM range. You'll find one setting will break the wheels loose from a dead stop, but runs out of power higher in the RPM. Others, as I have it now, will give good throttle response from idle, but then pulls hard to the shift point. I tried one that was nearly perfect, but 400 rpm short of the shift point was like losing the engine before it shifted. And there's no learning with the chip - it either works at operating temp or it doesn't. However, I have experienced some of the tunes light up the CEL when you bust a temp parameter (mainly intake temp) which could take 50 - 100 miles.

[Ray knight]

Originally Posted by 42pilot

Experiment with the settings. Remember, turning it up is not linear as RaceChip alters fuel and fuel timing at different points in the RPM range. You'll find one setting will break the wheels loose from a dead stop, but runs out of power higher in the RPM. Others, as I have it now, will give good throttle response from idle, but then pulls hard to the shift point. I tried one that was nearly perfect, but 400 rpm short of the shift point was like losing the engine before it shifted. And there's no learning with the chip - it either works at operating temp or it doesn't. However, I have experienced some of the tunes light up the CEL when you bust a temp parameter (mainly intake temp) which could take 50 - 100 miles.

Whats the best settings you have found for more top end power? Mine is strong on the low-mid and flat on top. Still fun to drive!

[Ray knight]

If i were to guess, I would say its spiking a real high boost level when you hit the gas then boost falls right off quickly as RPMs climb.

[42pilot]

Originally Posted by Ray knight

Whats the best settings you have found for more top end power? Mine is strong on the low-mid and flat on top. Still fun to drive!

Try E=S2 F=S1

The flat top is from the mapping going to stock near the shift points.

[Ray knight]

Originally Posted by 42pilot

Try E=S2 F=S1

The flat top is from the mapping going to stock near the shift points.

I'll try that out. Thanks!

[joe_planet]

Result?

[paicapo]

Originally Posted by joe_planet

Result?

Tried all the settings posted on the forum and the E2 is in my opinion the best, pulls very hard from bottom and fairly respectable in higher speed.

[Ray knight]

That setting works great. I love this engine! Its really awesome to drive. The diesel comes to life on the "E2" setting.