OK Jim please advise. is the 1.6zetec fundamentally the same as a Mondeo
2.0zetec of the same year?
If so my mondeo failed in a strange way, where the test bloke said it
looked like the Lambda was at fault but would have expected 'X' to be
out as well which it wasn't.
The fault diagnosed by another garage after trying the lambda pointed me
to a rubber 'T' piece on the crankcase breather to inlet manifold round
the back of the coil pack area. the engine also used to hunt at idle. so
'If' the 1.6 has one try that or breaking the fault down there is fresh
air possibly geting into the inlet after the mass meter (or mass meter
duff reading) my MK3 fiesta flashed a code via the clock led and had a
diagnostics plug in the engine bay. The cheepo reader i got told me
'less than 2 keys programmed to the car' so I lived with it.
Gary
Qless
On 20/04/2011 16:58, ludditeal wrote:
I have a similar problem on my H4 which has never been resolved...
Garage fitted new Cat/Lambda sensor, check showed no fault codes on
the ECU but emmisions were still slightly over... in the end they
passed it out of sympathy I think. Subsequent MOT's have been
sympathetic in passing it as well although I have tried a replacement
Air flow meter to no avail.
The engine has a slight hunt on tickover which has never been
resolved. It has been off the road for a couple of years whilst we
are renovating the house we are in and the plan when I get it back on
the road is to install a Megajolt ECU as a prelude to doing some
engine upgrades which will either pinpoint the issue or at least be
able to lean the mixure out for the MOT!
Cheers
Allan
On Apr 20, 11:30 am, bilje55<[email protected]> wrote:
I took my H4 to my local garage for the annual MOT following a new cam
belt, plugs, filters and oil. It shouldn't have failed..but it
did.....on emissions. And this is where modern mechanics enters (for
me) the realms of voodoo or witchcraft. It's a fuel injected 16v zetec
with about 40k on the clock only...with new oil and filters and a
satisfactory exhaust...but it fails on emissions? Two new sensors are
fitted...something to the block..temperature? and a Lambda sensor? The
situation improves but not enough...so a new catalytic converter is
acquired...and fitted...but the situation has still not improved
enough....so my garage man wants to call in a specialist auto
electrician, as he believes that there is some kind of electrical
fault...either wiring or (Please no) within the ECU. He (my garage
man) freely offers that he is really out of his depth...so I've agreed
to the specialist guy having a look...but he ( a travelling man who
undertakes specialist work for various small garage businesses in my
area) probably can't do the business until next Tuesday..and that's
just for diagnosis!
Friends...I need information: what is likely to be the problem here?
Should I be preparing for further expenditure on replacement parts?
Where should I start?
with thanks in anticipation....
Bill
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