91 accord sputtering at highway speeds

[ibruizeeasily]

my car has been sputtering or bucking,.not sure how to describe it really...around 55-70mph...highway speeds...i dont have a clue wtf thats causing it...just had my tires balanced,.and a full tune up...brought it to the trans shop and was told it wasnt the trans either...i'm lost....any ideas on what it could be!? help.. lol

[emilyandcory]

Get a new distributor. The cam sensor pickup goes bad at high rpms and causes it to sputter and buck at highway speeds. The only was to fix the cam sensor pickup is to replace the distributor because it is built in.

[ibruizeeasily]

thanks..I will look into that...Has this happened to you!?

[rather_b_boatin]

Just curious, if you put the gas pedal in a different position does it clear up? Just had the same thing and it was the O2 sens. that MUST be replaced with a Denso. If it eventually gets worse then kicks a 43 engine code then O2 sens is your prob.

[somick]

I would not replace a whole distributor yet. There are testing procedures for each of the three sensonrs located in the distributor. So start with this. But even before this - how old is your distributor cap, wires, spark plugs?

Good luck,

Sam

[ibruizeeasily]

yeah..if I let off the gas n lower my speed it'll stop..I heard it could be the egr valves that are clogged..who knows...

[ibruizeeasily]

Somick....I just had a full tune up..last Friday..so everything is new...

[somick]

Originally Posted by ibruizeeasily

Somick....I just had a full tune up..last Friday..so everything is new...

That eliminates spark plugs and wires.

Test distributor sensors.

Unfortunately this year of Hondas are know for clogged EGR passages. You need to look into that too.

Good luck,

Sam

[ibruizeeasily]

Somick...thanks..will do this weekend...I'll let you know how it turns out..

[mpumas]

How old is your fuel filter? You could be having a fuel starvation problem. Check fuel pressure while engine is at 3K RPM. Should be about 45 psi.

[ibruizeeasily]

not sure..I'm going to have it all looked at this weekend..I'll let u know...thanks! =]

[ibruizeeasily]

well,..found out my distributor cap is leaking oil...Could that be the answer to my problem?!....what now?..Do i put a new seal or a whole new distributor?......by the way...my fuel filter is brand new..

[somick]

I belive you can replace just the seal. I saw a very good instructions on YouTube from Eric The Car Guy. Check it out.

Good luck,

Sam

[mpumas]

Oil or red dust inside the distributor could cause the problem. Oil means the bushing and internal O ring are worn. As the bushing wears, the distributor shaft starts to wobble a little and then the O ring starts to leak oil which comes from the camshaft cover. Honda and Eric the car guy sez it is time to get a new distributor.

[ibruizeeasily]

thanks guys...I guess I'll look at getting a whole new damn distributor then...So i know it's fresh.. Hopefully that'll be my answer & It better stop that sputtering!...