[928uk] No start!

[Michael Parris]

Indeed, JDSporsche.com is still doing well and happy to help.

Mike

On Mon, 17 Jun 2024, 11:39 Adrian Langford, <
Adrian.langford at qualitative.co.uk> wrote:

> Thanks Mike I’ll be in touch to see if you’re still offering repair
> service? Have the ECU out now.
>
> Adrian
>
> On 17 Jun 2024, at 11:21, Michael Parris <michaeljparris at gmail.com> wrote:
>
> 
> You're correct, it's a fairly common LH failure mode with the injectors
> ticking as soon as you switch on but not cranking.
> It will fire up briefly as there will be fuel in the cylinders but it's
> not a controlled injector opening so it won't continue to run.
>
> It is a warning to all 1987-95  owners that the LH will fail one day if it
> is still original.
>
> Mike
>
> On Mon, 17 Jun 2024 at 11:01, Adrian Langford via 928uk <
> 928uk at lists.928.org.uk> wrote:
>
>> Grr.
>>
>> Now at home in quiet I can hear the injectors clicking as soon as
>> ignition on, so suspect a LH ‘hybrid tile’ failure. Will contact Mike P
>> about checking/fixing.
>>
>> Adrian
>>
>> > On 17 Jun 2024, at 09:50, Paul R Smith via 928uk <
>> 928uk at lists.928.org.uk> wrote:
>> >
>> > If you have sparks, the CPS is working.
>> > Note that the fuel pump will only run while the engine is rotating.
>> > Starts then dies does sound like lack of fuel.
>> > Check for flow at the return to the tank, that way the pump is working
>> against pressure, but the flow you are observing isn't under pressure.
>> >
>> > Smiffy
>> >
>> > On 16/06/2024 18:21, Adrian Langford via 928uk wrote:
>> >
>> > To my embarrassment I’m the last car at Leamington’s cars in the spa
>> event. Lots of nice compliments but when I wanted to leave she failed to
>> start! Turns over healthily but not firing.
>> >
>> > Grounded plug and there is spark. Jumpered pump which runs, engine then
>> starts but then dies. Also changed ignition and injection relays but no
>> difference.
>> >
>> > I’ve arranged recovery but wonder if it’s a CPS problem given the pump
>> doesn’t seem to be getting signal to run unless jumpered? I did change it
>> for a new one as preventive maintenance a few years ago but perhaps it’s
>> failed. Can’t test it properly till home and now waiting to be recovered,
>> but if I’ve missed anything obvious please say!
>> >
>> > Adrian
>> > MY91 S4 Auto
>> >
>> >
>> >
>> >
>> >
>>
>