P0261 and P0263 after installing EFI - 1130cc.com: The #1 Harley Davidson V-Rod Forum
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Old 08-02-2019, 02:48 PM   #1
wmajinw
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P0261 and P0263 after installing EFI

Hey guys, maybe someone encountered a similar problem to mine:

I have a 2002 vrsca and just installed aa Cobra powrpro black EFI. Its was a b*tch to install with my sausage fingers...

(Cobra powrpro connects to the bike injector plugs and wires and has a ground wire which connects to a bolt on the rear cylinder near the airbox and fuse box)

Anyways, when i installed it and turned on the bike, the "check engine" light came on and after checking the diagnostics codes the P0261 and P0263 came on.

The thing is, the bike starts and runs perfectly. The cobra powrpro stays "on".

I tried clearing the codes, wiggling the injector connectors, but the check engine light and the codes come back. Also, when i took the bike for a spin, at one time the check engine light disappeared but then came back on again. Same happened when trying to pull diagnostic codes - the light was on, but then shortly disappeared even before i cleared the codes.

Any ideas what could be causing this? Should i rewire the cobra powrpro ground somewhere else? What possible damage could i cause just ignoring these codes?
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Old 08-02-2019, 06:20 PM   #2
jblange
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P2061 is "Front injector Open/Low"
P2063 is "Rear injector Open/Low"

It means the ECM can't detect the resistance from them. it makes sense since you've installed the tuner in the circut. I would check with the manufacture of the tuner. it might be something you just have to live with.
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Old 08-03-2019, 11:40 PM   #3
Dawgun
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I have the same unit but none of your issues from it. My thoughts:
1) did you get the right wiring connectors for your vrod model?
2) are the connectors fully seated? (You should be able to see the restraining tabs in the little cutouts on the sides.
3) is your ground secure?
4) have you confirmed your unit is fully functional by testing different settings? (For example, altering the idle rpm?)
If all of this is okay, call Cobra.

Sam
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Old 08-04-2019, 08:09 AM   #4
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Mine's been trouble free since installation.
"So easy even the H-D "technician" did it on a V-Rod!
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Old 08-04-2019, 09:31 AM   #5
wmajinw
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UPDATE:

Took the bike for a longer ride with PowrPro installed:
-seemed like it was lacking power through all the gears;
-the gas mileage was horrendous, the bike ate twice as much gas as it should have;

After this ride i tried to relocate the "ground" from the PowrPro, unplugged, cleaned and reinstalled all of the connections, but it still gave me the damn P0261 and P0263 codes. In the end, removed the PowrPro and went for another ride. No codes and the bike was running as always (slightly erratic idle and some decel popping).

Contacted Cobra and Amazon (where i bought this damn thing) to see how could we resolve this issue.

I read on Yamaha Stryker/Raider and Suzuki M109r forums that some people were also experiencing the same problem - open circuit or low voltage in injector codes - and it seems that the PowrPro unit might be faulty itself, where the microchip or a resistor therein was acting up. they got sent new microchips and that seemed to resolve the issues.
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Old 08-05-2019, 04:10 PM   #6
Dawgun
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Quote:
Originally Posted by wmajinw View Post
UPDATE:
the PowrPro unit might be faulty itself, where the microchip or a resistor therein was acting up. they got sent new microchips and that seemed to resolve the issues.
Yeah, I've seen a lot of those posts too. Get a replacement unit and give us an update!
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