Menu toggle

968 Engine Sudden death - MAF?


PCGB Member
Last night on the A303 in "Bomber", the 968 engined S2, foot down hard accelerating up hill suddenly lost all power. The car starts, but almost immediately dies. So I am pretty sure it has spark, because it starts, and kind of runs for a second or two. It kind of responds to the throttle, but doesn't rev, just kind of coughs in time to throttle pumping. The same thing happens on both petrol and lpg, so thinking it is not fuel system related... The fact it starts and runs every time suggests it is unlikely to be ignition related, so my first thought was massive air leak, like blowing off the hose on the intercooler of the turbo... except all seem to be intact, unless there is something under the inlet manifold I am missing. So I am thinking MAF... I have disconnected it, and the car exhibits exactly the same starts, but dies characteristics (I didn't try the throttle on this test, as I wouldn't expect it to respond favourably anyway)... I did also a few months ago (OK, over a year, but with long periods of inactivity), have a problem of a fast idle and hunting between 1200 and 16-1800 rpm, that I replaced both throttle switch and ISV, neither of which made a difference, but the fault suddenly cleared itself... Does this sound like a MAF problem?
A quick trawl around suggests that a Volvo or Saab MAF may also be suitable/the same, it being a Bosch part. Anyone know of this/any experience of it? Without knowing for sure it is the MAF, I would rather not pay Porsche tax if I can avoid it!
Any other suggestions?
It does sound like a MAF issue but it might be a broken wire in the plug

the MAF is only used on the 968 and RS2
but as you suggest the Volvo one off a big V6
I would be checking all the plugs wires and pins first

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions


The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.