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Old Feb 2, 2025 | 12:26 AM
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chgofirefighter's Avatar
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Default Engine codes

After getting some work done on my 22 Low Rider ST, cams, exhaust,performance mods, etc from a local performance shop called, Blockhead, out of Orlando, Florida the following engine fault codes are being displayed, P0303H, P0505H and P1608. The bike turns off, does not maintain idle, and strange enough I can't shift smoothly, from 1st gear to 2nd gear is next to impossible to shift while riding the bike. Also, can't get the bike to go into neutral gear and I only have 3k+ miles on the bike!

Upon the work being performed, I started to have trans clutch issues but I was informed by the shop that the clutch needed to be adjusted. However, it was perfectly ok prior to the work being done and they didn't touch the trans....So it's a bit confusing to have mechanical issues when the bike stock was perfectly ok. Blockhead asked me to provide them with the fault codes so they could diagnose the issues with the codes, clutch etc but since it's the weekend the shop is closed. I'm sure they will take care of the issue but this is a well known performance shop with a Master Harley technician that has tons of years of experience, but this is odd and a bit concerning...

Can anyone assist me with the fault code meaning? Thanks in advance~
 
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Old Feb 2, 2025 | 06:52 AM
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Harley Trouble Codes

There is no listing for P0303.

The “H” codes are historic.

Was the bike running badly when you left the shop?

Good luck!
 
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Old Feb 2, 2025 | 07:29 AM
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remember: they have mechanics and then they have mechanics!?!
when you do shop work, have the service writer put down your instructions and if they have to deviate, they must call you.
they may feel that more power equals a need for clutch adjustment, but really? the newer disk spring clutches have a narrow band unlike the ole coil spring ones so if it is holding before, likely it will hold after.
it is like i need to put a band-aide on my knee just in case i scrape it.
you will be surprised at what a so called hoopdy-doo famous shop can and will do. a case in point: i had warranty work done on a vehicle that included a dead channel on the sound system so what did the tech do???
all he did was run a jumper from the working channel to the dead one, while giving sound at the speaker, effectively killed the stereo output. the truth is the system had a BAD rep for failure and they knew it, but toooooo lazy or maybe DUMB so they faked it.
also, tell the shop and have it in writing to save anything replaced for your final inspection before throwing it away, if needed, put down you will not pay for anything without said demands.
sorta like a date code on products, there to keep the merchant honest.
 
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Old Feb 2, 2025 | 07:46 AM
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Yes - re-verify the first code (P0303H)...are you reading correctly. Also, even if the shop comes w/ backing (i.e. master tech, experience, etc.), they might not be savvy on some of the latest technology. Could be something little (leaks, electrical gremlin), and you entrusted them to work on bike so...push them to get it right. That's what you paid for, correct?
 
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