Accel flickering on runtime at idle

For discussing MicroSquirt (TM) configuration and tuning of fuel parameters (including idle valves, etc.).
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Harv
MegaSquirt Newbie
Posts: 2
Joined: Mon May 10, 2004 4:02 am

Accel flikering on runtime at idle

Post by Harv »

I have never been happy with my idle quality. it tends to surge a little, 700 to 1000 rpm. At first I thought my injectors were a little too big for my motor, and were causing the idle surge. It acts like I cant get it lean enough. My motor is a Volvo B20 with a ported head and an IPD torque cam bored 30 over with 4 24 lb injectors running with a Datsun 280z fuel psi reg.
Today, while looking at the runtime display, I noticed the accel light flikering with the surge of the idle. This is happening with no throtle movement at all.
Any ideas?

John
looks just like a Telefunkin u-47!
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TT350chevelle
MegaSquirt Newbie
Posts: 26
Joined: Sun May 02, 2004 7:51 am
Location: Winnipeg,Canada
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Post by TT350chevelle »

TPS or MAP based accel enrichment? Did you try increasing the V/s threshold so the accel enrichment is less sensitive? What does a datalog show?

Brad J.
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Harv
MegaSquirt Newbie
Posts: 2
Joined: Mon May 10, 2004 4:02 am

accel flash

Post by Harv »

Thanks for the direction. I'll look into it. I'm still learning.
Thanks
John
looks just like a Telefunkin u-47!
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