Its a manual 2002 Honda Jazz, its quite poxy but thats beside the point. It has developed a problem that my mechanic could not diagnose/fix. It jerks sort of on the downhills or any time you back off the fuel and when going slowly as in a car park or pulling into the driveway sort of a bumpy stop/start feel. It would look like a learner driver bunny hopping. Mechanic has checked all the obvious things and nothing showed up on the diagnostic equipment. It is horrible to drive - any clues or ideas would be much apreciated.
mechnificent,
Feb 8, 4:14am
Some cars behave like that if the throttle position sensor isn't adjusted correctly.
cuda.340,
Feb 8, 4:14am
sell now!
janet31,
Feb 8, 4:15am
yes he checked that thanks.
ginga4lyfe,
Feb 8, 4:17am
why not take it to a honda dealership that has a workshop on it, and ask them what there opinion is!
janet31,
Feb 8, 4:18am
Yup will have to I guess lol.
mechnificent,
Feb 8, 4:20am
Next guess would be that the ignition timing was out. cept I doubt that is supposed to be possible on that.
mechnificent,
Feb 8, 4:21am
Or, getting really silly.
You have an out of round wheel or a bent/worn axle.
pandai,
Feb 8, 4:42am
The third word in the first post.
vtecintegra,
Feb 8, 4:44am
CVT transmission!When was it last serviced!
im_andrew,
Feb 8, 4:46am
Idle air controll valve sticky and slow to open
pandai,
Feb 8, 4:49am
The jerking while going downhill could be a clue, presuming it's above 1500rpm or so, the injectors will be off, so I don't know if the IACV will affect that.If it were something simple like a motor mount, the mechanic would surely have looked at that too (perhaps one of them is vacuum assisted!)
pandai,
Feb 8, 5:03am
I am going to hazard a guess - Faulty EGR valve
Seems those cars are also sensitive to rubbish petrol so try a 95 octane fuel as well
ema1,
Feb 8, 5:07am
I'd be looking at possible damaged/broken engine /trans mounts allowing the engine to move excessively or possibly the driveshafts being defective! Just my 5cents worth Cheers. Used to be a major problem with BLMC cars in the day I was working on them, engine mounts were two a penny in them and I wouldn't mind $100 for every one I replaced in those cars! Possible fault with engine EGR system or some quirk in the tune of the engine, Honda Agent would be a good move.I guess they would have a diagnostics plug so the fault codes can be checked out being EFI set up!
janet31,
Feb 8, 5:31am
thanks for that I wondered if that was worth a try.
pandai,
Feb 8, 5:32am
I'd ask the Honda dealer about it first though, they'd probably have fixed a few by now
janet31,
Feb 8, 5:50am
lol, yes but its normal to diagnose yourself before seeing the doctor/specialist :-)
dent,
Feb 8, 6:30am
Any chance its a cvt transmission!
icemans1,
Feb 8, 6:48am
why buy a honda!
janet31,
Feb 8, 6:59am
why even the MILs indeed.
mike107,
Feb 8, 7:14am
CVT playing up!
janet31,
Feb 8, 10:19am
well, hubby is a scotsman .say no more and fgs he HAD read the manual. will go have words.
janet31,
Feb 8, 7:41pm
you are so mean.
janet31,
Feb 8, 10:11pm
What are these gears you talk of!
daniel83,
Feb 8, 10:13pm
Are there 3 pedals! If so, there might be a big stick thing that you have to move as you drive!
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