06 AE Shift Code 48 - this throttle cable issue also happen to you?

[GypsyCaravan]

My bike started idling a bit fast the other day on the way to work.

The shift code 48 warning light came on. I let the bike cool down, and tried to lower the idle in my parkng garage, but nothing changed. I rode it to a meeting later, with the intent of carefully riding home afterwards.

By the time I left the meeting, the idle was at 1500 rpm.

I stopped by a dealer nearby, and he attempted to further lower the idle, and the idle screw would only raise the idle when turned in, but did nothing to lower it when turned out.

Now my bike was idling at 2000 rpm, and at a stop light, it was like trying to control a penned-up bull, just before the gate opens.

I went to a nearby friends house, shut it down, and hauled it to my dealer.

As of tomorrow, they've had it for a week. They were initially mentioning my air box mod (in advance of PCIII, etc.), and they also mentioned my own throttle body synch could be the culprit. They kept using the word "tampered with" in their conversations with me.

Just today, I stopped by, 'cause they've called me 3 times in two days asking questions.

The bike is now idling at 3K in the shop, and the throttle adjustment cable doesn't make a difference. He seems to be more comfortable that I didn't screw it up on my own, and this is now a legit Yamaha issue.

They seem to think the problem is in the throttle bodies, but is hesitant to order the part as he says it's a $1200 part. He doesn't want to order it, because if he's wrong, he says Yamaha won't do anything more about it. He's afraid of being out many troubleshooting and repair hours, and also out the $1200 expense for an installed part that may not fix the problem.

I searched the forum, and found two previous threads on this issue.

Did anyone observe the same issue with the throttle cable? Does this sound exactly familiar?

This dealer may not want to fix my bike, so he can cut his losses now... at least that's the feeling I'm getting from him. He seems genuinely worried he may lose his a$$ on this repair job, and I may end up in a real uncomfortable situation. (These guys have been great since I started going there, but this one seems to have him rattled.)

Any real advice, similar experiences and helpful info is appreciated.

-Jonathan

 

[Cubrdr]

According to the manual... SH-48 Check and adj engine idling speed if no Then REPLACE THROTTLE BODIES (DEFECTIVE FAST IDLE UNIT)

Good luck!

 

[Capt. Bob]

Beat me to it but we both agree.

Since the shop cannot control the idle speed using the normal idle adjustment (order #1)

My shop manual points to a "defective fast idle unit"

Clearly states to "replace the throttle bodies"(order #2)

I would think that this would be SOP for Yamaha in dealing with this type of problem.

Good luck

 

[Constant Mesh]

You can rule out the throttle cable by looking between/just behind the 2nd and 3rd throttle bodies and seeing if the tab on the throttle cam is resting all the way down on the idle throttle stop. If the tab doesn't go all the way down something's holding it up -- cables, Audiovox CC connection, etc.

The cold, fast idle mechanism is located just below the throttle bodies. It's a mechanical system that sends additional air to the engine when the coolant is below normal operating temperature. As the coolant warms after startup the air is gradually reduced and eventually totally closed off.

If the two coolant hoses, etc. were blocked so that coolant couldn't get to the mechanism the fast idle would continue even with normal coolant temps.

There's an idle speed adjustment screw on the fast idle mechanism. You might try this adjustment to see if the idle speed changes as you turn the screw. It takes a long standard flat blade, slotted screwdriver to reach the screw. The screw is horizontally oriented, below the throttle bodies, about halfway across between the 2nd and 3rd throttle bodies. You should be able to gain access from the right side of the engine, inserting the screwdriver below the throttle bodies, and hopefully you can connect with the screw head.

Maybe additional air is entering the system from a leak in the flexible connections, hoses, caps off test ports, etc.

 

[818Guy]

You do not have a PCIII do you?

I've had this happend to me twice, the code. First time was before I had the PCIII. Dealership "adjusted" the idle. This was about 3,000 miles on the odometer. The second time was about 13,000 miles - this time I had the PCIII. The dealership said it was the PCIII's fault for the code. *rolleeys* They disconnected the PCIII and gave me the bike back. Interesting note, they did not reconnect the O2 plug. I asked them about it when I picked up the bike. The service tech was surpised when I asked, he said no "codes" were being triggered with the O2 still unplugged. *shrug*

Also, do you have Y.E.S.? Then the price shouldn't matter.

Good luck with your issue.

 

[Capt. Bob]

Anything new on this?

 

[GypsyCaravan]

Actually, yeah.

They finally listened to the service manual, and finally ordered the $1200 (!) (exclamation added, due to strong dealer emphasis on this) part.

They replaced it and.... hold on.... surprise! It fixed the problem immediately.

They also mentioned several times that it was obvious to (them) that I didn't "mess" or "tamper" with any of the factory-torqued screws, but that YAMAHA wanted to review the part anyway.

Then, tell me they want a $1200 deposit to cover the part, in case Yamaha determines this is my fault, and they have to hold onto the part for up to 90 days (assumption they hold my bike that long, too).

Needless to say, I strongly disagreed.

They gave me some rap that Yahama NEVER wants parts back for testing... but they want this one sent back to WI to verify if I caused the problem. They also want a deposit to cover the part, before they'll release my bike.

We had an unpleasant conversation.

There are other details. I've vented enough to give you the picture at this point...

Now the part is being shipped, and the boneheads are sitting on a deposit for $1300+.

We'll see... The saga continues.

 

[GypsyCaravan]

You do not have a PCIII do you?
I've had this happend to me twice, the code. First time was before I had the PCIII. Dealership "adjusted" the idle. This was about 3,000 miles on the odometer. The second time was about 13,000 miles - this time I had the PCIII. The dealership said it was the PCIII's fault for the code. *rolleeys* They disconnected the PCIII and gave me the bike back. Interesting note, they did not reconnect the O2 plug. I asked them about it when I picked up the bike. The service tech was surpised when I asked, he said no "codes" were being triggered with the O2 still unplugged. *shrug*

Also, do you have Y.E.S.? Then the price shouldn't matter.

Good luck with your issue.

No, I don't have a PCII yet. I've only done an airbox mod & barbarian in prep for future mods.

 

[Capt. Bob]

He then goes on and on about how much time they've had testing for the problem...

With all due respect, by following the procedure outlined in the Factory Service Manual, this problem was quite simple to deduce.

Hell, we did it over the internet <_<

Good luck with this and keep us posted.

PS.....I haven't been around here that long but I can't recall this problem surfacing before You may be the first.

 

[03HiYoSilver]

Gypsy,

I just had my Throttle Body Assy (they do cost about $800-1200) replaced with YES a month ago and Needed NO Deposit on my '03. In Fact, my Yamaha Service Rep and I Pre-Ordered the part from Japan which took about 2 weeks & Customs to have it local in case it was needed for the diagnosis down the line. After doing Many Other Things and it was not fixed, they did install the Throttle Body Assy and it instantly solved the problem. The symptoms were Fouling out Plugs or Uncontrolled/Intermittent CO Settings that would not stay fixed. (This work was done by our Regional Tech Advisor for Yamaha himself personnally) (Also, NO PCIII installed)

Unfortunately, the WHOLE Assy has to be replaced and there are NO individual parts to fix its innards. They sent mine to California for Diagnosis since they could not believe it could cause such problems.

My bike now purrs like a kitten and is stablized and keeping all its settings as it should have.

Good Luck with your fix....these things DON"T Code and it's a real hair puller.

 

[Shadow]

Not sure about others but Yamaha seem hard to get along with at times.

They don't like to admit to any problems, like the altitude problem where ECU's were replaced.

I can't understand why a company wouldn't just want to fix things, it makes for better customer relations.

It seems that we have to fight Yamaha/dealers all the time, not good at all.

 

[Shane Stump]

Not sure about others but Yamaha seem hard to get along with at times.
They don't like to admit to any problems, like the altitude problem where ECU's were replaced.

I can't understand why a company wouldn't just want to fix things, it makes for better customer relations.

It seems that we have to fight Yamaha/dealers all the time, not good at all.

While I can't comment on the SH__48 code, my local dealer has had my bike for 5 weeks and is replacing one of the clutch units (not really sure what) under YES because of SH__26.

Most of the time with my local dealer is because they only have ONE master mechanic and he has more work than he can handle.

I am hoping to have my bike back & running sometime late next week!

I hope you get it fixed & running well as it normally does.

Best Regards,

Shane

 

[GypsyCaravan]

UPDATE 9/17/08

Received a call from the dealer yesterday... He said the Yama Rep told him they reviewed the parts, and would honor the claim... BUT.... since the $$ amount was so large the Rep had to get authorization and approval from higher up the chain.

Stay tuned.

 

[motorcycle-ed]

What a crock! I have an 06AE. I hope I don't have to go through this.

Ed <_<

 

[GypsyCaravan]

The dealer called yesterday afternoon.... Said the yama rep told him that he'd never had an approval rejected, so they could count on being reimbursed by Yamaha.

The dealer said they'd refund my deposit right away.

FWIW, I noticed an immediate difference in my bike, when I got it back with the new throttle bodies. Much smoother, less hesitation from a start, etc.