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Hi guys,
The wife’s honda fit recently made a 1000 mile round trip.
Initially the car would only hiccup while at a stop light, and I do mean hiccup — idle perfectly fine and then hiccup– and back to idle at 900rpm perfectly fine.Well, on the trip we noticed that it didn’t much like gently accelerating up the hills. It happened alot around where the auto-overdrive usually engaged to the point where I was wondering if it the torque converter was locking and unlocking and the locking up again 1- 2 times in quick succession, because the trans had alot of trouble figuring out what gear it belonged in during the hill climb… but then it started doing it in 2nd and 3rd gear too, usually between 1-3k rpm, and usually when gently accelerating but with a little throttle added to make it up a hill.
0 issue when the accelerator is stomped on, and anything over 3k rpm i’ve never experienced a hiccup.
This Fit seems to pull just as hard as my 98 civic under hard acceleration so its not a noticeable malfunction when under hard accelerationOddly, the car got 38mpg the whole trip and and through the Vermont mountains, but only did 33 on the way home. (some additional traffic so maybe that was it…) I would’ve thought that a missing engine would get crap mileage.
The plugs are the Denso iridium, and the one I checked (this engine bay is so cramped….) looked just fine.
The one idea I have aside from the fuel filter and pump — as seen in here http://www.ericthecarguy.com/kunena/8-Service-and-Repair-Questions-Answered-Here/32220-engine-hesitation-when-accelerating —-
was to start checking the spark coils any other suggestions would be greatly appreciated.
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What year is the vehicle and how many miles?
http://www.ericthecarguy.com/faq/solving-automotive-idle-problems
http://www.ericthecarguy.com/faq/solving-automotive-performance-issues
Sooo sounds like ‘pirate air’ (loose clamps on the intake plenum after the mass air flow sensor?) or dirty mass air flow sensor…
ok I’ll grab some carb clean and start spraying around. Much rather do that then start guessing which coil at 55bucks a pop.
Thanks2008 Honda fit 1.5L auto 113K miles
Its acting different than the Subaru Eric was working on. the plugs are Denso (the OEM)… don’t appear worn.
The other day while accelerating to 70 merging onto interstate the car missed for solid 30 seconds, check engine light flashing, then for no discernable reason, it stopped misbehaving, CEL went out and acted like nothing happened…
The next day the advance auto guy said the ECU didn’t store any codes… first if I had a better reader might there be something useful be saved aside from codes?
I had a friend plug in his laptop with obd2 software a week before flashing cel incident….. the ECU thinks everything is running perfectly, not one single misfire on any cylinder (it even had a hiccup while plugged in! No codes.) These modern car computers sure seem awfully stupid and inept.
Aside from fixing this particular car, whose bozo idea was it to specify obd2 did not need to store ANY codes about a flashing CEL event? I really can’t see any good reason for that to NOT be documented by ECU.
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