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Help!pc III and check engine light

961 views 9 replies 5 participants last post by  pd_bro  
#1 ·
Help!!!!! I adjusted my pc III fuel/air on low and mid rpm settings
and check engine like came on.

I had my big shots and pc III installed 3 days ago. I've been
riding everyday without any problems. Got off the bike tonight and
adjusted the pc III to help with the popping.
1. Turned bike/switch off
2. Turned bike on and started to adjust low-rpm setting with pcIII.
Took it all the way down to negative fuel and moved up to one
before mid fuel range.
Helped eliminate single pop after twisting
accelerator at idle.
Previous low rpm setting was one above mid fuel range.
3. Also lowered mid rpm range to one peg below mid fuel range.
4. Looked up and noticed check engine light was on and it
would not go out even after turning bike off and
on and riding for about a mile.
Any ideas on what I did wrong or do I need to unplug pcIII and plug
back up?
 
#4 ·
go into diagnostics & check your trouble codes. sounds like maybe something came loose or disconnected especially if you just had work done. when youve corrected your problem clear your check engine light with key on, cycle the kill switch & the light should go off. also if your idle drops below 900rpm the engine doesnt like that & may be letting you know with the check engine light
 
#6 ·
Good chance that the PCIII is realy the problem, but it's easy to find out if the manual adjustments caused the issue. Disconnect the lead for the PCII, then reconnect. That will automatically clear all manual adjustments, and leave you with the map that was loaded into the box. I think reloading the map does the same thing, but I know for sure disconnecting will start you at ground zero. PigDog is right on with the idle, a low idle as a result of the PCIII and pipe changes can cause an error.
 
#7 ·
When you say it leaves me with the map that was loaoded do
you mean the map that was downloaded? I'm using the one
for "Big Shots and the factory air box". I really have
the Speed Star scoop. And, could someone help me find
those diagnostic codes. I look in the Warrior manual and didn't
see them.