Still not running right

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Still not running right

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Still not running right - 5/6/2008 4:57:21 PM

murf1

Posts: 66
Joined: 2/20/2007
Status: offline

98 Ultra, EV27 cam, SE air cleaner, Supertrapp Se slip ons and Harley Down load, I replaced the Rinehart True duals, with stock pipes and slip ons. Runs alot better, but it still hesitates when you crack the throttle, and idles at 500 RPM, when warmed up, sometimes likes to stall at stop signs. Any ideas, crank sensor?? ignition ?? I ran out of ideas and I really don't care to keep running back to dealer and paying them. They said it was the exhaust first, and they were party right, I went back after I changed exhaust and they did the down load, the hesitation I can live with if I have to , but the stalling really gets annoying, is it possible to turn the idle up manually ??

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RE: Still not running right - 5/6/2008 6:26:41 PM

BB Sue

Posts: 57
Joined: 1/15/2008
Status: offline

Idle's too low (on an evo it should be at about 1000 - they're not designed to run that slow), if you have an aftermarket carb then yeah, if you're FI, then you need a remap setup for your module...

Which gets to #2 - sounds like your mixture is off, which if you changed your pipes and cam without doing that then yeah, it is. When your mixture is right (either jetting or remapping) and your idle is right your prob should go away...

I hope!

bbs

(in reply to murf1)

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RE: Still not running right - 5/6/2008 9:11:26 PM

murf1

Posts: 66
Joined: 2/20/2007
Status: offline

Thats why I'm wondering if there is something else causing it, The re-map is done and it still is idleing at 500 RPM

(in reply to murf1)

Post #: 3

RE: Still not running right - 5/7/2008 10:52:24 AM

Beemervet

Posts: 865
Joined: 5/22/2006
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quote:

ORIGINAL: murf1

Thats why I'm wondering if there is something else causing it, The re-map is done and it still is idleing at 500 RPM

You probably need a fuel management device. (FI, right?) I use the Power Commander. Allows for precise tuning.

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RE: Still not running right - 5/7/2008 3:15:43 PM

ajayrk

Posts: 131
Joined: 7/15/2007
Status: offline

Yes you can adjust the hot and cold idle manually.

Here is a general method with diagrams. After you set the idle be sure to pull the proper fuses or disconnect the battery for 15 min. so the ecm can learn the new setting.

http://mysite.wanadoo-members.co.uk/H.H._M_bulletins/M1105_idle_speed_MM.pdf

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AJ

(in reply to murf1)

Post #: 5