What now? (bad idle and poor running)

[Journeyman]

Hey, man- don't jinx me

Yeah, no matter what, that TPS was crapp! I appreciate all the help.

 

[Journeyman]

So, it's been a while and she seems to be running well. If just saying that doesn't cause a problem, I may be out of the woods. So, I think it was a combination of things. The TPS was junk- that definitely made a difference, but I wasn't quite all the way there.

Then, about a week ago I changed the fuel filter. Well, it seemed to idle better and was running good at low RPMs. Once I hit the Interstate though it was kinda "boggy" and not good if I flogged it. Danggggg... Went to work and then on the ride home she was back to her normal badass self.

Since then, it's been pretty smooth sailing, so I wonder if the fuel filter really was part of the problem, if the ECU had been trying to compensate- then, with a new filter flowing fuel more freely, the ECU just needed time to adjust. Is that possible?

That, or, there's another "bad moon on the rise."

 

[warp9.9]

So, it's been a while and she seems to be running well. If just saying that doesn't cause a problem, I may be out of the woods. So, I think it was a combination of things. The TPS was junk- that definitely made a difference, but I wasn't quite all the way there.

Then, about a week ago I changed the fuel filter. Well, it seemed to idle better and was running good at low RPMs. Once I hit the Interstate though it was kinda "boggy" and not good if I flogged it. Danggggg... Went to work and then on the ride home she was back to her normal badass self.

Since then, it's been pretty smooth sailing, so I wonder if the fuel filter really was part of the problem, if the ECU had been trying to compensate- then, with a new filter flowing fuel more freely, the ECU just needed time to adjust. Is that possible?

That, or, there's another "bad moon on the rise."

Oh so you got up on the tank amd slapped the kurwa. I keep telling Rick aka 1K9 thats what he needs to do in the twisties

 

[Kevin frazier]

So did you put the stepper back on?

 

[Journeyman]

So did you put the stepper back on?

Not yet, but I probably will once I'm sure it's all good. I found a guy with a lot of new parts while I was trying to suss all this out, so I have a new stepper (although I now think the old one was probably OK), new coils, the new primary TPS I installed, etc.

If she starts acting up again (please, no) I plan on swapping in a new coil and rotating it around until it's resolved. Once I'm convinced all is well I'll probably put the stepper back on and a PC5 and AutoTune I bought right before all this went down.

 

[sonny]

After riding 20,000 miles with no stepper motor am installing one in this time around. Cold starts is the only reason.

 

[Journeyman]

Knock on wood - I am going to declare this issue solved. Thank you for everyone's help!

I believe it was a bad Primary TPS and a fuel filter gone south.

I have had a number of good days since I last posted. She's a beast!

So...... who knows how to fix a fuel gauge that doesn't work? @sonny is on it- anyone else? Got ideas? Post here...

Fuel Level Indicator Not Working - Clutch Switch/Solved!

I've had the tank up and down a lot lately fighting various gremlins. At one point the fuel level indicator stopped working. The low gas warning light still comes on, but the digital display and miles remaining is no longer functioning. I've notice that if I lift the tank it will reset (not...

www.r3owners.net

 

[Kevin frazier]

Knock on wood - I am going to declare this issue solved. Thank you for everyone's help!

I believe it was a bad Primary TPS and a fuel filter gone south.

I have had a number of good days since I last posted. She's a beast!

So...... who knows how to fix a fuel gauge that doesn't work? @sonny is on it- anyone else? Got ideas? Post here...

Fuel Level Indicator Not Working - Clutch Switch/Solved!

I've had the tank up and down a lot lately fighting various gremlins. At one point the fuel level indicator stopped working. The low gas warning light still comes on, but the digital display and miles remaining is no longer functioning. I've notice that if I lift the tank it will reset (not...

www.r3owners.net

did you put the old stepper motor back on?

 

[Journeyman]

did you put the old stepper motor back on?

Not yet. I have a new one too. Not sure which I'll mount.

 

[Kevin frazier]

If you put the old one bsck on you can verify that tps sensor.