When I'm in Park it will idle around 900ish RPM and be around 14.4 air/fuel.
When I shift into gear it will stumble almost stalling, than idle around 600ish RPM. It will be around 14.4 or 15 air/fuel.
Is there ANYWAY to make it so it won't do this? I hate having it almost stall. I'm using a chevy IAC. as well.
Almost dies switching from Park to Drive...
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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
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Re: Almost dies switching from Park to Drive...
You could try running more advance in the lower RPM bins to try help the engine recover. I run a mild roller cam in mine and it idles at about 900rpm in gear and about 1200rpm out of gear, I find that the engine loves ignition advance - similar to running the old manifold vacuum advance. Also your idle speed should be set while the car is in gear, no different as you would if you were running a carb.
Sydney, Australia
Successfully MS2 v3.0 squirted 1971 Holden Monaro HQ
400 Pontiac, gasket matched #16 heads, Tomahawk intake, 1000cfm 4bbl throttle body.
Successfully MS2 v3.0 squirted 1971 Holden Monaro HQ
400 Pontiac, gasket matched #16 heads, Tomahawk intake, 1000cfm 4bbl throttle body.
Re: Almost dies switching from Park to Drive...
I'm not controlling spark at the moment. But do plan to do that in the near future...perhaps over winter.
I seem to have it switching better now but still dips down to 400ish rpm which i do not like. It doesn't stall though.
I seem to have it switching better now but still dips down to 400ish rpm which i do not like. It doesn't stall though.
Re: Almost dies switching from Park to Drive...
Try adding more fuel, it's almost as if the engine isn't producing as much idle torque to cope with the gearbox once it's engaged in gear. Also once the engine is thoroughly warm, turn up your idle speed to about 800rpm whilst in gear and see where that gets you.
Sydney, Australia
Successfully MS2 v3.0 squirted 1971 Holden Monaro HQ
400 Pontiac, gasket matched #16 heads, Tomahawk intake, 1000cfm 4bbl throttle body.
Successfully MS2 v3.0 squirted 1971 Holden Monaro HQ
400 Pontiac, gasket matched #16 heads, Tomahawk intake, 1000cfm 4bbl throttle body.