Hello there
the specs are as follows : MS2 pcb 3.57 v 2.890 running on a stock bmw m20 2.0 Direct coil control with the stock VR sensor and 60-2 trigger wheel. 3 wire bosch Pwm valve for idle control.
im using tunerstudio btw.
My problem are as follows : I simply cant get it to idle below 1000 rpm dosen´t really matter if it´s hot or cold. it´s starts really well but when it drops below 1000 rpm i can see the rpm meter in tunerstudio is going 0-350-0-400-0-345-0-240-0-523-0 and so forth. i have tried alot with the ASE and been checking ground and the altenator have been disconnected. another laptop and so forth. Sometimes the ASE turn on and off on off on off on, feels like it follows the the rpm.
another power supply for ms , none of the things ive tried seem to make it even slightly better.
it runs really great as long as the rpm dosn´t drop below 1000 rpm
Bad idle and possible resets on ms 2
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Bad idle and possible resets on ms 2
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Bernard Fife
- Master Squirter
- Posts: 475
- Joined: Thu Oct 29, 2009 12:54 pm
Re: Bad idle and possible resets on ms 2
Per,
Have you adjusted the VR circuit pots? There's instructions here: http://www.megamanual.com/ms2/vradjust.htm
If that doesn't help, you might ant to read this: http://www.bgsoflex.com/megameet2008/me ... gnding.pdf
Lance.
Have you adjusted the VR circuit pots? There's instructions here: http://www.megamanual.com/ms2/vradjust.htm
If that doesn't help, you might ant to read this: http://www.bgsoflex.com/megameet2008/me ... gnding.pdf
Lance.
"Never wrestle with pigs. You both get dirty and the pig likes it.” - George Bernard Shaw
Re: Bad idle and possible resets on ms 2
A litlle update.
I did some adjustments on the VR pots but only managed to shut the signal off completely and turn it on again the other pot seems to be ignored completely.
things I thought about :
My ignition coil are located quite close to the wiring at the firewall so i´ll try move it a bit.
The tach input wire runs in the motronic wiring box with other high current cables so even though it´s shielded i´ll try to relocate it.
Just a bit strange it can´t run with the stock motronic wiring locations
But if MS is a bit more Delicate in terms of wiring solutions i might have to ditch some of those wiring boxes.
Anyway thanks for the input Lance
It seems this noise problem could be a serious Pain to locate
I did some adjustments on the VR pots but only managed to shut the signal off completely and turn it on again the other pot seems to be ignored completely.
things I thought about :
My ignition coil are located quite close to the wiring at the firewall so i´ll try move it a bit.
The tach input wire runs in the motronic wiring box with other high current cables so even though it´s shielded i´ll try to relocate it.
Just a bit strange it can´t run with the stock motronic wiring locations
But if MS is a bit more Delicate in terms of wiring solutions i might have to ditch some of those wiring boxes.Anyway thanks for the input Lance
It seems this noise problem could be a serious Pain to locate
Re: Bad idle and possible resets on ms 2
The issue seems to be solved.
Moved the ignition coil and separated the sensor grounds from the rest.
adjusted the VR pots again and the idle is perfect
Thanks Lance
Moved the ignition coil and separated the sensor grounds from the rest.
adjusted the VR pots again and the idle is perfect
Thanks Lance