1990 8V 1.8L w/ MS2 2.886
This is the last thing I need to take care of before I get my car inspected. It's been off the road since 2004 so this is BIG for me. I've finally got the idle control to where I want it to be using the 2 wire bosch PWM valve. At a 50 degree start up it will immediately fire to 1700 RPM and slowly drop down to 1000 RPM as it gets to temp. But even after Warmup is off and it is up to temp whenever I rev it or drive to the end of the drive-way, as I let off the throttle the RPM's drop to where it dies. Alternator load makes the problem worse. I can't always blip the throttle to keep it awake. It appears to be going rich as it goes below normal idle RPM. Where should I look first? Once I start driving everything is fine but stopping is always a pain.
Always wants to die after revving at idle
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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.
Always wants to die after revving at idle
1990 VW Corrado w/ 2.0 16v - MS2extra, V3.0 board, 2.886 code
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Always wants to die after revving at idle
I'd try bumping up the timing in the spark table in a row just below the idle speed first, see if that stabilizes it. If it doesn't, please post a data log of the engine almost dying after you rev it and a copy of your MSQ, and I'll see if I can offer any more suggestions.
Re: Always wants to die after revving at idle
That seems to have done the trick. I still have to play with it but I think it'll work. thanks! 