I have a 2000 Insight with 231,000 miles on it. I replaced the EGR valve 3 years ago. Now I'm having simliar bucking, mostly around 2000 rpms, especially on a slight incline or slight acceleration, mostly around 35mph, especially after the engine's warm. My malfunction indicator light has gone on (a lot), and the first time they read the codes my mechanic said it was for the second O2 sensor.
I've had the egr plate replaced--that helped a little, and it was very clogged, but the bucking's since gotten worse. They put in new spark plugs--my mechanic thought it might be that, because the bucking started around the same time he replaced them with generic plugs, so he put in type B Honda plugs, but it didn't help. Now he's talking about replacing two of the compression coils.
I've unplugged the EGR valve, and that help for about 2 days, but now the bucking is back and bad as ever.
So, if the bucking happens even when the EGR valve is unplugged, does that mean it's not the EGR valve? If it's not, what's the next most likely thing? My mechanic is nice but I'm the only insight he's worked with. I'm not very mechanically oriented, either. Does anyone have easy-to-convey (and hopefully not super expensive) suggestions?
I think its the 02 sensor. i have had similar issue do to an o2 sensor issue
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2001 MT Silverstone. Car # 106
bought 08/19/2012, @ 193k miles and 48.6 LMPG. as of 2/1/13. (49.3) LMPG...
Best trip so far. 104 mpg over 80 miles.
EPS fuse removed,
upper and lower grill block.
rear wiper delete, passenger wiper delete.
Do you think it's the primary or secondary O2 sensor? Which one did you replace? I replaced the primary sensor when I first bought the car, 100,000 miles...
what I know is that when I put a spacer(pulled it out of the exhaust stream) on my secondary o2 sensor it made my car very "herky jerky" right around lean burn, it was low load and usually around 40-60 mph. it eventually gave me a code for the 1st o2 sensor even though I hadnt touched that sensor and I knew it was good. just a thought.
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2001 MT Silverstone. Car # 106
bought 08/19/2012, @ 193k miles and 48.6 LMPG. as of 2/1/13. (49.3) LMPG...
Best trip so far. 104 mpg over 80 miles.
EPS fuse removed,
upper and lower grill block.
rear wiper delete, passenger wiper delete.
what I know is that when I put a spacer(pulled it out of the exhaust stream) on my secondary o2 sensor it made my car very "herky jerky" right around lean burn, it was low load and usually around 40-60 mph. it eventually gave me a code for the 1st o2 sensor even though I hadnt touched that sensor and I knew it was good. just a thought.
I had the same "herky jerky" experience when I added the spacers on the secondary sensor. Almost changed out the EGR valve, but ended up replacing the ECM instead.
I have the same probleme. Replaced EGR, 1st o2 sensor, still jerky. When it is very cold, I have no problems. When it become over 0 celcius, after warmup, it jerk a lot. When warm, it is better but not perfect.
I also have 3 new honda coils. I re-installed my old coils, and it is now better. I also replace the temp sensor, in case.
Hi all, I will try to clarify on the ECM. When I put the double spark plug spacer mod on the downstream O2 sensor ( to make the false P0420 code stop ), I noticed a fair amount of "herky jerky", and thought it might be the EGR valve. However, before I replaced the EGR, and after I had the ECM repaced and removed the double spacer on the downstream O2 sensor, it stopped the "herky jerky" and is still doing fine after 18 months.
I don't think the ECM has anything to do with the "herky jerky", just the double spacer.
Not sure. I was thinking it would throw a code if it was bad. My experience is the car was not super happy with the anti-fouler mod, even though it did fix the false P0420. Keep us posted.
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If it's not the EGR, then...?
