I have a 2 wire bosch valve, which comes standard on the mk2 VW. It works fine in closed and open loop mode but the crank-to-run taper time has no effect. After cranking it goes straight to run position. Like immediately, I cannot see any tapering. Even if I set the crank position to have a very large differential from the running position.
What else can I do? Is this a known issue with the 2.886 code?
PWM idle valve not staying in cranking position
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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.
PWM idle valve not staying in cranking position
1990 VW Corrado w/ 2.0 16v - MS2extra, V3.0 board, 2.886 code
Re: PWM idle valve not staying in cranking position
NM, currently only an issue without closed loop, which I don't plan to use
1990 VW Corrado w/ 2.0 16v - MS2extra, V3.0 board, 2.886 code