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Just for information, I did the same with the pre-face lift model, and the MAF and MAP sensors are identical, the IMRC Valve is slightly different as the pre-facelift version is in two separate parts (one being the valve construction, the other being the plenum chamber). Both are connected using...

I initially got put off this by the frequency solenoid valve thread, as unplugging this caused an improvement as with the OP of that thread. As a source of information to others, unplugging this valve will not demonstrate that it is faulty (or that it is fine) - if you unplug this the car...

Don't worry Fahad, you can relax ( ;) ), it was the first thing you suggested, but I had a look at it first and it was an original filter, and the garage claimed to have done it. I even re-bled it to be sure.

Mwah ha ha! Fixed it - got fed up so bought a new fuel filter, fitted, bled, and guess what? Runs like perfect! Oh well, good exercise, I now have very clean MAP and MAF sensors, and swirl chamber! All worthwhile things to do in their own right, I guess, and at least the solenoid valve cost me...

Hi Carl Thanks for that - I had put the hosing back before hand, and all tests were independent of each other (test drives and re-setting error codes between). Should have seen the number of codes from disconnecting the MAF!!! Couldn't really tell how it went with the MAF off - in limp mode...

OK, tried a few more things - cleaned both MAP and MAF sensors, with test drives after each, along with IRMC(?) valve. Made no difference. Tried a drive with the MAP disconnected - limp mode Tried a drive with the MAF disconnected - limp mode Will try stripping the EGR off next and giving it...

OK, we had a play tonight. As it is driving perfectly with the solenoid valve electrically disconnected (but throwing a code), we decided to try some options with the vacuum hosing. First up we completely bypassed the valve, running a hose from the solid pipe to the swirl control valve...

OK, I've still not fixed the issue but this may help us narrow it down. I again today tried disconnecting the frequency solenoid valve (the new one). took it for a longish run including some motorway mileage - and it was absolutely fine, no problem whatsoever! Re-connect it, and low and...

My brother-in-law took it for a spin last night (very good mechanic), and pointed to a few things it could be. He didn't think it would be fuel related, and felt it was more likely electronic - as these are fly by wire throttle. I mentioned the injectors were replaced, and he wandered if the...

I got some air out but the problem remains. Will speak to the dealer tomorrow and get the car booked in until it is repaired c/w courtesy car.

Well, the part was fitted today, and we took it for a motorway run to test it - and the hesitation is still their!!! Luckily it hasn't cost me anything so I'm going to try bleeding the fuel filter tomorrow, as the priming bulb is soft - does this soften once the engine is run, or should it...

This sounds exactly like the problem I've been having - I'm having a new frequency solenoid valve fitted on Saturday (I tried unplugging it and it seemed to solve the problem). I'll let you know if it is completely cured once the new valve is on. Edit - although mine does it in a specific rev...

Thanks - it had switched itself off when I left work. Right - spent an hour at Bristol Honda on the way home from work. They re-set the code on the ECU, then took it for a drive before doing the ECU interrogation. After an hours wait, the technician confirmed their is hesitation between...

Oh, one more thing - is their anyway to turn the engine light off? Having disconnected the sensor last night I now have the engine management light on? Do I need to reset anything, or will it just de-activate after a set time?

That makes some sense. Older petrol Honda's were always tuned around high octane fuel due to the better quality petrol in Japan, hence imports had slightly higher power outputs, but some higher tuned vehicles developed problems with lower quality fuel (Subaru's, Evo's, etc). UK models were just...

True. will give the RAC a call at lunch time and get them to confirm it. Does the fuel make that much difference on these? I always use Shell anyway as their is one near my house, and another near work, but I wasn't going to worry using V-Power on this (used V-power every other tank on the SEAT).

OK, well I have plugged it back in anyway, so will wait and see what happens. The loss of power was in the 2000-2500rpm range for information. Pretty sure the warranty will cover it - if not the garage will as I have only had the car 3 days! Thanks for the help

entwisi - Thanks, its definitely not right then! It hasn't been smoking noticeably. I've just disconnected the valve (the wife gave me strict instructions to leave her car alone so couldn't pinch hers!!!). Took it for a drive and problem solved. Engine management light came on, but that's to...

LOL, thats only the Hondas - also been through several others, including an Ibiza Cupra, and two Clio sports. Have to confess though, most of the better ones actually belonged to my wife. I had the Delsol for a long time - had it in a magazine etc. Fahad - I'll try that tonight (will pinch the...

Thanks for the quick responses. It's not the clutch as the rev counter is picking in line with speed, and it was serviced before I picked it up on Saturday. I'll check the paperwork to see if it mentions the fuel filter used. The wife has a diesel civic with the 6 speed, and this doesn't seem...