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My 16V is very sluggish and the throttle response is absolutely rubbish. I have set the timing and checked for vacume leaks. Please help... On the secret MFA it shows the car is idling 960-1060. Please help or direct me to a specialist in London. Thanks
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Describe the engine symptoms in more detail e.g. is it popping, or backfiring. Does it pick up at high revs etc.
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hi, the car revs seem to be holding back. The car is not pinging or popping. Even at idle reving the car it seems its not reving freely. Please help guys...
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it's not in setup mode of somethign is it, have a search of the info and matance,
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Have you checked out Rub Johnny's tuning guide on here? How about a basic home service? When was the air filter last changed? Start with the basics, on these cars it's usually something easy / obvious thats at fault. :smiley:
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My first checks, assuming your timing is spot on and you really have checked for air leaks, would be...
> CO2 Setting
> Leads
> Plugs
> Check that the acceleator pedal fully opens the throttle body
> Unplug the 5th injector to see if thats affecting the fuel/air ratio
> Fueling issue e.g. blocked filter or stale fuel
> The rest of the ignition system e.g. coil
> Clean ISV
> Try unplugging the over-run cutoff valve
Good luck!!
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theres no setup mode on kr, assuming thats what it is and not an emmissions model PL or 9a or something?
the 16v guide isnt mine its shamelessly stolen from clubgti, i might write up a new one for a 16v later on now I have one of my own!
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shows how much i avoid kjet now :smiley:
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The car has had a service in August, replacing the Air Filter, Fuel Filter, Spark Plugs, Oil & Filter, New ISV. The other problem that has started after flushing the coolant and refilling it, is now and then the temperature light flashes for a second or two, but the car is not overheating at all and the coolant level is ok too. ERGHHH.... When the car is warm and between changing gears the car occasionally cuts out when the revs drop, and whilst sitting in traffic the car starts hunting.... I am so sick of these petty problems and just want to get it sorted.
Good thing is that the fuel economy is quite good, full tank give about 300miles combined.
I am not sure what to do... I love the car to bits and just wanted it running 100%. Rubjonny has helped alot in the past and have used his set up guide to the the timing, but i did it without disconnecting the red cable coming from the coil, as i could not locate it...
(http://photos-c.ak.fbcdn.net/photos-ak-sf2p/v235/187/59/553085526/n553085526_3022082_741.jpg)
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shows how much i avoid kjet now :smiley:
hehe :cool:
raks why do you feel the need to put up a photo of your car after every post?
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I just love that photo of it.. I think it looks awesome..... Its part of my signature....
(http://photos-c.ak.fbcdn.net/photos-ak-sf2p/v235/187/59/553085526/n553085526_3022082_741.jpg)
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The other problem that has started after flushing the coolant and refilling it, is now and then the temperature light flashes for a second or two, but the car is not overheating at all and the coolant level is ok too.
It will be either the coolant level sensor in the expansion tank or the temp sensor, or maybe the clocks. Have a search on the forum for details.
When the car is warm and between changing gears the car occasionally cuts out when the revs drop, and whilst sitting in traffic the car starts hunting....
I would first check the operation of your idle switch on your throttle body. Then the rest of the ISV system. Then VERY carefully look for air leaks.
I am so sick of these petty problems and just want to get it sorted...
Don't be such a p#ssy :grin:, block off a weekend and get your hands dirty, I had similar issues and it took a month to sort them out 90%, and probably another three months to get it perfect. Perseverance!!
Good thing is that the fuel economy is quite good, full tank give about 300miles combined.
I easily get 340 if I drain the tank, and closer to 380 with lots of motorway miles from a brimmed tank. Maybe this suggests your running a bit rich? Worth a check anyway.
I am not sure what to do... I love the car to bits and just wanted it running 100%. Rubjonny has helped alot in the past and have used his set up guide to the the timing, but i did it without disconnecting the red cable coming from the coil, as i could not locate it...
On my 16v, its fairly obvious which is the red wire to disconnect as IIRC its the only red-wire-to-red-wire connection. Are you sure its not tucked out of sight? If it really isn't there, maybe a previous owner has been fiddling with the ISV system?
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Ooo! Just thought of a strong possibility.... Your injectors!!!
Maybe their blocked/knackered - get them out and give them a test. That would give bad idle, poor throttle response etc. etc. Remember the brass merc one's are cheap as chips. You could replace the O-Rings on the injectors too while your at it.
Be careful when fiddling with the fuel system though. You might be killed to death!!
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Thanks mate...
I will check the injectors over the Christmas holidays... and the other bits this weekend...
Thanks again.. if you think of anything else please do let me know...
(http://photos-c.ak.fbcdn.net/photos-ak-sf2p/v235/187/59/553085526/n553085526_3022082_741.jpg)
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random cutout could be due to the overun valve behind the airbox, the black plasticy roundy one. I had same issues, chucked on another and it was sorted. Check out the idle switch as said though! the red/black lead plug is right by the coil, start there and follow the red/black wires till you find the white plug.