06-14-2022, 09:17 AM
To be clear, my 2013 standard which I bought last Fall with around 4500 miles on it, developed the idle instability problem after I put fewer than 1000 miles on it. It did not show any problems when I first got it. I bought a new IACV and had it installed and the one that was removed looked like new. Part number 16430-MFJ-D01(for pre-2017 bikes.) The bike ran fine for about two weeks after the installation, then the high idle problem returned.
When the problem first started, it was the SLOW idle and engine dying problem.
Slow idle: Engine starts fine and idles about 1500. Ride off and after a few miles stop at a stop sign or light. Idle drops to 500. When throttle is increased to bring idle up, engine dies. Re-start requires more cranking than usual, then engine starts. Release clutch, give it gas to get rolling, engine dies. Hard cranking to start, engine starts and will die again (often in the middle of an intersection now) and requires attentive throttle control to keep it lit. Get it home and sit in driveway and let it idle. Idle goes down to 500 for a few minutes than slowly climbs back up to 1100 and stays, but will drop again if bike is ridden. After a few weeks of this, the slow idle problem went away and the high idle started. Haven't seen the slow idle return since the high idle started.
High idle: engine starts right up and idles at around 1800-2000. After idling for a few minutes, drops to 1500. Ride off and at first stop (stop sign 1/2 mile from my house) idle goes to 1500 or 2000. Otherwise bike rides fine. Sometimes it stays at 2000, other times at 1500.
At first it was always at 2000. I took the TPS off and sprayed the contacts really good with contact cleaner. The idle only went up to 1500 after that, but has started climbing back to 2000 after a few rides. I do not ride much now since the Summer heat has set in and temperatures only drop to 85 or 90F at night and go to 110+ in the daytime. Temperature in my garage is usually around 80-95F, so I don't feel much like messing with it now and don't know if the heat has anything to do with the way it acts.
Of course, disconnecting the TPS will get the expected result- runs fine with idle at 1100 and check engine light on. I don't rev it to 5K, but I am sure that is where it tops out.
I will not be trying any problem solving with it until temperatures drop back again the end of September. Or maybe never. It is just too frustrating. I did not buy this bike for this kind of disappointment.
I haven't taken it to a mechanic, because I don't have any confidence in their ability or willingness to fix it. My experience is that they will throw parts at it until I run out of money, or patience, but never fix it.
It is a shame Honda does not do something about it, as it has thoroughly destroyed any confidence I had in Honda products. I have a 2017 CRV, which is a fantastic car, but now I keep waiting for it to start acting up.
I cannot in good conscience sell the bike to another individual, so I am stuck with this useless lump. In all fairness, I can ride it, but the joy is gone. It is a great bike and I love riding it, but it is no longer fun.
When the problem first started, it was the SLOW idle and engine dying problem.
Slow idle: Engine starts fine and idles about 1500. Ride off and after a few miles stop at a stop sign or light. Idle drops to 500. When throttle is increased to bring idle up, engine dies. Re-start requires more cranking than usual, then engine starts. Release clutch, give it gas to get rolling, engine dies. Hard cranking to start, engine starts and will die again (often in the middle of an intersection now) and requires attentive throttle control to keep it lit. Get it home and sit in driveway and let it idle. Idle goes down to 500 for a few minutes than slowly climbs back up to 1100 and stays, but will drop again if bike is ridden. After a few weeks of this, the slow idle problem went away and the high idle started. Haven't seen the slow idle return since the high idle started.
High idle: engine starts right up and idles at around 1800-2000. After idling for a few minutes, drops to 1500. Ride off and at first stop (stop sign 1/2 mile from my house) idle goes to 1500 or 2000. Otherwise bike rides fine. Sometimes it stays at 2000, other times at 1500.
At first it was always at 2000. I took the TPS off and sprayed the contacts really good with contact cleaner. The idle only went up to 1500 after that, but has started climbing back to 2000 after a few rides. I do not ride much now since the Summer heat has set in and temperatures only drop to 85 or 90F at night and go to 110+ in the daytime. Temperature in my garage is usually around 80-95F, so I don't feel much like messing with it now and don't know if the heat has anything to do with the way it acts.
Of course, disconnecting the TPS will get the expected result- runs fine with idle at 1100 and check engine light on. I don't rev it to 5K, but I am sure that is where it tops out.
I will not be trying any problem solving with it until temperatures drop back again the end of September. Or maybe never. It is just too frustrating. I did not buy this bike for this kind of disappointment.
I haven't taken it to a mechanic, because I don't have any confidence in their ability or willingness to fix it. My experience is that they will throw parts at it until I run out of money, or patience, but never fix it.
It is a shame Honda does not do something about it, as it has thoroughly destroyed any confidence I had in Honda products. I have a 2017 CRV, which is a fantastic car, but now I keep waiting for it to start acting up.
I cannot in good conscience sell the bike to another individual, so I am stuck with this useless lump. In all fairness, I can ride it, but the joy is gone. It is a great bike and I love riding it, but it is no longer fun.