Electrical issue? No fuel pump or gauges..... advice please

Need some help with a technical problem - ask away and let's see if we can all help.

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Bootsy
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Electrical issue? No fuel pump or gauges..... advice please

Post by Bootsy »

Went to move the Yellow car this evening - haven't used it since last week on Prom duties last week.

Turns over fine - very fast in fact given I fitted a new battery (a couple of weeks ago) BUT.....

No whine of the fuel pump

No Alternator light on, no pinging to life of the gauges (fuel, oil pressure) - (clock still works!)

So guessing electrical - quick glance of fuses and seemed ok but wondered if anybody could shed some light given the combination of failures?

Can check fuel pump relay but why have the gauges also gone?

Bad ground somewhere?

Ignition switch failure?

Hate electrics! Any words of wisdom and what to check first appreciated!
1972 911T | 1994 993 Carrera | 1999 986 Boxster |

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Nine One One
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Nine One One »

Did this happen AFTER you fitted the new battery?
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Bootsy »

Fitted the new battery couple of weeks ago and used it a few times.

Then drove to the Prom last week - stopped and started multiple times, came home, parked it up and left it
1972 911T | 1994 993 Carrera | 1999 986 Boxster |

Vintage Heuer, Omega, Zenith and other vintage watches - http://www.heuerheritage.co.uk
Nine One One
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Nine One One »

Do the lights work and indicators?
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Bootsy »

Lights YES

Indicators…….. NO!
1972 911T | 1994 993 Carrera | 1999 986 Boxster |

Vintage Heuer, Omega, Zenith and other vintage watches - http://www.heuerheritage.co.uk
Nine One One
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Nine One One »

Have you checked that the earth strap from the battery to the body of the car is clean/tight and free from rust where it bolts on.
I would say it is a bad earth and seems as you changed the battery recently I would concentrate around that area first?
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Bootsy
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Bootsy »

Will start there
1972 911T | 1994 993 Carrera | 1999 986 Boxster |

Vintage Heuer, Omega, Zenith and other vintage watches - http://www.heuerheritage.co.uk
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Lightweight_911 »

.

All of the items you've said are not working are fed via the ignition- check the condition/ tightness of the heavy gauge red wires at the battery +ve terminal.


.
Andy

“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Bootsy »

Will start with the battery tomorrow evening and work from there
1972 911T | 1994 993 Carrera | 1999 986 Boxster |

Vintage Heuer, Omega, Zenith and other vintage watches - http://www.heuerheritage.co.uk
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Bootsy »

Ok had a nice clear morning so up early and....

Took the new battery off
Inspected and clean all wires, connectors, checked ground etc.
Fitted and....

Still nothing.

So under the dash to have a look at the Ignition switch and......

Voila - the Pin connector from the switch was loose.

So cleaned it all up, contact spray etc.
Plugged it in

All sorted!

Thanks for the advice
1972 911T | 1994 993 Carrera | 1999 986 Boxster |

Vintage Heuer, Omega, Zenith and other vintage watches - http://www.heuerheritage.co.uk
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by sladey »

Nice one - always great when you find and fix the problem
The simple things you see are all complicated
I look pretty young but I'm just backdated yeah
Lightweight_911
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Re: Electrical issue? No fuel pump or gauges..... advice please

Post by Lightweight_911 »

.


:cheers: :cheers: :cheers:

.
Andy

“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
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