General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

PC 5 lossed its map or other problem?

Thread Tools
 
Search this Thread
 
Old Jan 2, 2010 | 08:54 PM
  #1  
thunderbob's Avatar
thunderbob
Thread Starter
|
4th Gear
Joined: Dec 2009
Posts: 8
Likes: 0
From: ARKANSAS
Default PC 5 lossed its map or other problem?

I got one for you guys, today i took the scoot out in the 37 degree weather because the withdrawls were to much. my bike was running fine when all of a sudden at a stop light my bike started idling real low like it was just hitting on one cylinder, loss of power and sounded horrible.
Oil light was not on. About 2 weeks ago my battery ran down to nothing i had to take it off and recharge it and rode it home, today was the first time i rode since the battery died. Can the PC lose its map or lose the map on one cylinder? Im at a loss, Ive heard the PC can lose there maps?

Im running stage 1 AC, PC5 and wrapped thunderheader on a o7 streetbobob
 
Old Jan 2, 2010 | 09:39 PM
  #2  
clicker01's Avatar
clicker01
Road Warrior
Joined: Jul 2009
Posts: 1,745
Likes: 1
From: A house.
Default

It almost sounds like your bike went into parade mode... running on one cylinder. How did it run off idle?
 
Old Jan 2, 2010 | 09:52 PM
  #3  
oct1949's Avatar
oct1949
Club Member
15 Year Member
Liked
Loved
Joined: May 2007
Posts: 145,895
Likes: 821
From: 40 miles Northeast of Indy..
Default

Any time U add another component to a system I'd think bout anything could go wrong..
From minor to major...
 
Old Jan 2, 2010 | 09:57 PM
  #4  
thunderbob's Avatar
thunderbob
Thread Starter
|
4th Gear
Joined: Dec 2009
Posts: 8
Likes: 0
From: ARKANSAS
Default ???????

Originally Posted by clicker01
It almost sounds like your bike went into parade mode... running on one cylinder. How did it run off idle?

when i rolled on the throtle it sounded like one cylinder was hitting, hardly any power so turned it off and towed it home. what is parade mode?
 
Old Jan 2, 2010 | 10:08 PM
  #5  
clicker01's Avatar
clicker01
Road Warrior
Joined: Jul 2009
Posts: 1,745
Likes: 1
From: A house.
Default

when i rolled on the throtle it sounded like one cylinder was hitting, hardly any power so turned it off and towed it home. what is parade mode?
Parade mode shuts down the rear cylinder at idle if your temp exceeds a certain temp. It shuts off immediately when you twist the throttle, so that's not it. Maybe you did lose a map, but check the obvious first, spark plugs, wires etc...
 
Old Jan 2, 2010 | 10:50 PM
  #6  
thunderbob's Avatar
thunderbob
Thread Starter
|
4th Gear
Joined: Dec 2009
Posts: 8
Likes: 0
From: ARKANSAS
Default

i guess i can check the map by hooking up my laptop to the PC and checking to see if the map is still there. wires and plugs look ok. One plug has a little black gunk on it but it doesnt look bad. I have the fat screamin eagle spark plug wires on there, they look ok.
 
Old Jan 2, 2010 | 11:59 PM
  #7  
OldEnuf2NoBtr's Avatar
OldEnuf2NoBtr
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2009
Posts: 9,165
Likes: 1,910
From: Doghouse... mostly
Default

Plugwires can crack for no reason and you won't be able to see the defect. Could be the ECU, I guess. Could be a lotta things on an F/I bike. Coil? Newer factory coils can go **** up occasionally. Lemonish things are around. All my experience is with the older carbed sleds, so I"m just trying to help. Start with the cheapest fix you think it might be and if that doesn't get results,stand back ,scratch your head and call a friendly Wrench. Streetbobs don't have Parade Mode. Only Baggers
 
Old Jan 3, 2010 | 12:57 AM
  #8  
clicker01's Avatar
clicker01
Road Warrior
Joined: Jul 2009
Posts: 1,745
Likes: 1
From: A house.
Default

Originally Posted by thunderbob
i guess i can check the map by hooking up my laptop to the PC and checking to see if the map is still there. wires and plugs look ok. One plug has a little black gunk on it but it doesnt look bad. I have the fat screamin eagle spark plug wires on there, they look ok.
Check your wires with an ohmmeter. Should be pretty close to zero resistance. I'd throw in a new set of plugs for good measure. Then go to the coil. The service manual has the testing procedure and specs.
 
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Jan 3, 2010 | 01:07 AM
  #9  
OLD 96's Avatar
OLD 96
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2009
Posts: 5,149
Likes: 2,975
From: WACO
Default

Originally Posted by thunderbob
I got one for you guys, today i took the scoot out in the 37 degree weather because the withdrawls were to much. my bike was running fine when all of a sudden at a stop light my bike started idling real low like it was just hitting on one cylinder, loss of power and sounded horrible.
Oil light was not on. About 2 weeks ago my battery ran down to nothing i had to take it off and recharge it and rode it home, today was the first time i rode since the battery died. Can the PC lose its map or lose the map on one cylinder? Im at a loss, Ive heard the PC can lose there maps?

Im running stage 1 AC, PC5 and wrapped thunderheader on a o7 streetbobob
The PCV cannot "lose" it's map. When it is in there it cannot be removed unless you remove it.
I think the low battery and temperture had more to do with it.
My 2007 Ultra pulled kinda the same trick a few months ago when I got off work. Totally died a mile down the road when I slowed down to make a turn. Ran funky all the way home . But, only when I came to a stop. By the time I got home,15 miles, it was running normal. Go figure.
 
Old Jan 3, 2010 | 01:56 AM
  #10  
joesride's Avatar
joesride
Tourer
Joined: Dec 2009
Posts: 413
Likes: 3
Default

Check your battery out real good.Check the cables etc.Fuel pump will not run too good with bad ground or a slight film on battery cables.Cold weather can cause electrical type troubles with batteries, corrosion on connections and grounds etc. Check the easy things first. Good luck.
 



All times are GMT -5. The time now is 04:38 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE