Solved - 2005 Blackbird, surging @ 2 - 3k - rough running, fuel, plugs? help!!

magley64

I have a 2001 with similar problem, do american birds have an 02 sensor?

I was thinking a faulty FPR, but i'd rather try this first...

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Kingrosco

Hey all from Aus,

Just tried to O2 eliminator on my 2007 Bird (yes we can still get them new here but not for long) & it worked like a charm. Got my resistor from Dick Smith Electronics & fitted it as instructed, easy as. Only have the one sensor & I wanted to get rid of it so I can fit a full 4 into one yoshy. Much smoother on low rev cruising but will do a full test tommorow with a 300km run on winding 2nd gear tight mountain range roads. Stay tuned folks

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JohnS

Dont forget that the Bird has adaptive learning and maintains a trim table to offset values in the fuel map. To get the best results it should be cleared when you fit your eliminator.

This just means you need to disconnect the battery, ten minutes should do it.

The only place I hve ever seen the 2 O2 sensors documented is on the Dynojet site. I believe it is a mistake and that there are no Birds with two.

I don't understand why you are not getting an error code running the resistor as if you look at the Bird error codes there are 2 relating to the O2 sensor.
The heater circuit and the signal. The ECU expects to see a load on the heater circuit and a voltage constantly varying between .1 and .9 volts on the signal wire. Normal eliminators send a .5 volt signal to the ECU and it thinks its all good.

I am not for a moment suggesting it wont work I'm curious as to why it does.

Don't forget to clear the memory it's important.

JohnS

Beondwacko

2001 US birds have no O2 sensor btw. If you had a faulty FPR, the most common symptom is excessive rich running / poor fuel mileage.

Roger27

Hello all

I am new here and found your site by looking on the net for a solution to my bikes rough running problems. It seems I may have found one with your resistor solution. I will give it a go, my bike has run rough when hot since new, I got nowhere with my local dealers over 10 months and lots of time in the workshop. The dealer has changed various things over the months including changing the cpu computer. Nothing made any difference, I was only told a week or so ago by Honda that it is the European regulations and the way the computer is set to make the bike pass the regulations and there was nothing I could do about it. I could put a power commander on which "may" fix the problem but would void the bikes warranty on the engine if I had any future problems.
Of course it runs fine when cold.
I would like to say thanks for the information, I wish I had looked earlier but I did think it was a fault with the bike and so did the local dealer.

I will let you know how it goes.

Thanks again
Roger.

Gareth60

Hi Roger,

I do find that there is still a issue when hot, but no where near like it used to be. Mine use to stall in traffic which was not good. I also fitted a power commander and whereas it makes the bike perform much better in the mid range, it's doesn't do much for the fuel economy, , But hey..

I'm going to to the same for my father-in-law's VFR as he is having the same issues.

All the best.
Gareth.

Roger27

Hello Gareth

Yes mine is not good in traffic, u turns and roundabouts, very slow riding in a carpark etc. It also bounces a lot more over bumps when hot, it is much smoother over the same road bumps when cold, I think it is a combination of the bumps and the engine nearly stalling.

Cheers
Roger

Gareth60

Hi Roger,

As a really quick test like I did, just disconnect it and ignore the warning light on the dash.

Lift the tank and get someone to hold it or prop it up. You'll see a rubber covers about 6 connectors. The o2 sensor is a 4 pin one and you can trace the wire back to the sensor in the exhaust. Just unplug it...

Roger27

Hi
thanks for the information I will do that first and let you know how it goes.
I am not a mechanically minded person, I always take the cars or bike in to Honda for service etc. but I think I can manage that !
Honda here claim nothing is wrong and told me to not ride at a constant speed, what they think I am to do in traffic is anybodies guess, they also said just accelerate harder, to make it run smoothly I would have to run right into the car in front, I was not very impressed. On the other hand we have two 2005 Honda Jazz cars, they have been brilliant and Honda service for cars has been fine.

Thanks for your help again.

Roger

Roger27

Hi Gareth
just to let you know, I unplugged the oxygen sensor and went for a quick ride. (40K)
Well the difference is dramatic on my bike, the surging is gone, I can change gears smoothly and easily both up and down, it doesn't sound like it is about to stall when slowing down either. Also I get a much smoother ride, mine was very sensitive to the road surface, I think that was because you got a combination of the road bump and the bike dipping at the front when the engine speed kept changing. I can now back off the accelerator without suddenly slowing down anywhere near like it did before.
Many thanks for your help and also the others here too. I still have the warning light on, am I right in thinking the resistor makes the light go off?

Cheers and many thanks.
Roger.

sjtscott

Glad to see we've all been able to help others with the same issue here! I just ran my bird almost 3000miles on a two week 8 country european tour.. absolutely faultless engine/FI wise on some awesome alps mountain passes and autobahn speed runs! Suspension with fully loaded givi luggage well thats another story! lol

lois

Hey Adam....is that true for the California models as well???


lois

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Roger27

Hello, I have done a bit of riding now and the bike is better with the O2 eliminator from Serco in Brisbane. It still has the problem when it is been running at higher speeds when you slow down but not as bad. It also is not right if you are riding for a while under about 75 Kph and in slow traffic, and it certainly does not like U turns etc.

I am not sure what I will do next, I like the bike apart from this problem and I do a fair bit of 60 -70Kph zones riding. Maybe I just get a different bike, I am not really into changing stuff on cars or bikes, and I don't have the time, I just want to go and ride it, Honda are not interested so I will have to give it some thought.

Anyway
Thanks a lot for your help, I will pop onto this site still and keep in touch etc.

Cheers
Roger.

fasterspider

My California model has had her FI light come on a mile after fill up twice now and she acts like she is going to stall for a few hundred feet but then clears up and the FI light goes out.
She got bad mileage on the last tank of fuel even with 6 ounces of Seafoam and one gallon of 111 octane race gas mixed in.
As soon as I got home after she acted up the 1st time, I added Seafoam and race gas and she ran good for the rest of that tank.
I buy my fuel from the same Chevron station every time I fill up and this FI light thing along with the stuttering on accel happened a mile after I left the station the other day. When I went there today to fill up, they had no 91 Premium fuel.
I'm thinking they got a load of bad gas but, will that bad gas screw up some components in my fuel injection system? I really have no clue when it comes to FI.
Give me a bank of carbs and I will break them down, clean them up, reassemble them, bench sync then install and sync them no problem.
PGM-FI? I'm screwed!

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