I can't get the problem fixed....
When the AC is on, the idle fluctuates a lot that the car wouldn't idle at all.
The rpm drops so low between shifting and idling.
After couple cycles, the car just died.
Can someone please help? Thanks!
Running AC Idle Problem
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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.
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devastator
- Experienced Squirter
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- Location: Kinda near Tucson Arizona
Re: Running AC Idle Problem
Watch the bin that the VE table enters when the AC comes on. This bin is likely too lean and that's why the engine stalls. You should be able to watch the AFR dip as the engine changes RPM. Also, be sure the ACCEL is not being triggered by a sudden MAP change. You can also datalog this event and study it more closely to tell what's happening for sure.
Sandrail-ACVW 2276 cc, Turbo
MS-II W/spark burning E85
The sand must be punished.
MS-II W/spark burning E85
The sand must be punished.
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TPI 85 Blazer
- MegaSquirt Newbie
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Re: Running AC Idle Problem
Do you have any provision to raise the idle speed when the compressor is running? It's pretty easy to rig up a valve to do this - you don't even have to run it through MS.