Rough Idle, Check Engine then Limp Mode after Storage
Took the RT out of storage yesterday. Installed the battery, it started quickly. Bit of a rough idle at first but it smoothed out quickly and seemed fine.
After it warmed up a bit the idle became very rough, then the check engine light came on and soon Limp Home mode and it would not idle at all without help.
Shut it off, waited 15 minutes bit but the same result.
Took it out for a ride hoping it would clear but after a couple of minutes Limp Mode again.
Disconnected the battery for an hour then tried it again but same result...rough idle, check engine then Limp Mode.
Read the codes: P2279 and P0106 which both hint at air leaks and manifold pressure issues.
The RT ran flawlessly last season (8000Km, 5000mi). Rode right into December and it was running fine the day it went into storage. Changed the oil and ran it for a couple of hours then. Removed the battery and kept it charged over the winter.
Thoughts or suggestions.
Thanks
Going to check the easy things first
Thanks for the suggestions.
The gas was stabilized before we put it away. So we will pull off the panels and check for obstructions, leaks and cracked hoses.
If that doesn't reveal anything its off to the dealer next week. If you are going to have these type of problems its a good thing they happen at the beginning of our riding season.
Thanks again. Will report back with the solution.
2 Attachment(s)
SOLVED ==>Rough Idle, Check Engine then Limp Mode after Storage
Well it was a cracked vacuum hose (see pics below). No critters, nests, no "chewing" and no bad fuel. The P2279 and P0106 codes were correct.
On the left side under the acoustic panel there are two small vacuum hoses (3.5" long) that run to the Manifold Air Pressure Sensor (M.A.P.S.). The one that is on the front of the M.A.P.S. adapter was cracked right through at its 90 degree bend. The one that is on the rear of the adapter was cracked too but not right through.
I replaced the hoses with 4" pieces of vacuum hose and the RT ran better than it did in the fall. After idling rough at first start it settled down to a smooth 1400 RPM. No check engine and no LIMP Mode, Yea...my wife is happy again. :) A test ride just confirmed this.
I can't see how this will not be a perpetual problem. The forward hose is quite near the forward cylinder. It will dry out from the heat, crack and probably split again. We're going to carry two 4" pieces of vacuum hose in the ever growing spares kit. Now that I know where to look its a 30 minute job to replace them (if the mirror cooperates!!)
Many thanks to everyone for their tips and suggestions.
John