Question about Porsche 928

1 Answer

When you try to start the car it starts for a second then dies the injectors are all good i had them all tested. when you manualy give them power with a prob it will run

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 101 Answers

I had a 86 Porsche 911 that did this. On my car, the car cold start sensor was bad, $500 plus tax and that was over 10 years ago. Also, it could be a sensor, which is located on the vary back on the engine attached to the fan housing. but it is the only one back there on my 86. It is a idle control sensor. They will go bad gradually and some people actually have gotten stuck when the completely go.

Posted on Mar 19, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Fuel injectors not working


have you checked the volts to the relay for the injectors ?

Jun 14, 2017 | Ford Ranger Cars & Trucks

1 Answer

Fuel injectors not working


Possible ECM not seeing cam or crank signal to fire injectors

Jan 21, 2014 | Ford Ranger Cars & Trucks

1 Answer

Would a faulty electric fuel pump relay be the reason there is no power going down to the fuel pump in a 2002 suzuki grand vitara 2.0 rhz diesel engine


To test fuel flow, have a 2nd person stand over air filter (air filter housing open) with a can of starting fluid in one hand. Don't give any throttle, then 2nd person gives 1-second squirt into air filter while you're turning starter motor (no throttle). When engine catches, immediately give one third to one half throttle. Just before it dies, 2nd person should give another short squirt of starting fluid to keep engine from dying. If throttle won't keep engine running and only starting fluid keeps it running, then yes, no fuel is going through fuel lines. Either its a fuel pump issue or maybe there's restriction because of clogged dirty fuel filter. If it starts but runs rough and has black exhaust smoke, then its clogged or dirty fuel injectors.

Nov 29, 2013 | 2002 Suzuki Grand Vitara

1 Answer

I PUT A NEW HIGH PRESSURE OIL PUMP IN MY 6.0 2003 POWERSTROKE IT RAN GOOD FOR TWO WEEKS THEN STARTED RUNNING ROUGH AND THEN DIED


Ford had a lot of problems with this engine. Most diagnosis requires a factory software scanner or one that can interface with the FICM module (fuel injector control module) Now you can perform injector buzz test and glow plug tests. If you can get running then also do a power balance test these test check fuel injectors statically and dynamically with the common rail oil pressure control sensor. These FICM modules are famous failure parts. Napa auto can get them.

Nov 07, 2013 | Ford F-350 Cars & Trucks

2 Answers

2007 Hyundai Sonata starts but dies after few seconds


it may be goin but the chec valve or fuel regulator cud b bad--getta pressure test done

Oct 22, 2013 | Hyundai Sonata Cars & Trucks

1 Answer

93 toyota pickup 4x4 it will stay running after I turn it on to start it up, it starts up then after a few seconds it kills


if I'm reading this right...
... the engine starts and dies within a few seconds.
... you jumpered the fuel pump test connector and it will keep running.
... you smell fuel after trying to re-start when it dies.

Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.

Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.it will keep running.

... you smell fuel after trying to re-start when it dies.


Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.


Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.

Mar 30, 2013 | Cars & Trucks

2 Answers

Car starts right up but 2 seconds dies, u can start it right up again & it dies again, won't run. has good spark & fuel pressure good when dies


You are on the right track by finding the injector pulse missing.
The computer grounds the injectors based on signals from the cam and crank sensors. You may have to use a scanner to check for trouble codes in the computer and watch the sensors work.
The problem could also be a relay or the key switch.

Dec 10, 2012 | Cars & Trucks

1 Answer

Car starts, runs rough it will eventually die after about 10 to 15 seconds, or if i try to give it gas. smells like gas. replaced fuel pump/filter


why did you replace the filter and pump?
did something get in the fuel?

check the injectors and spark plugs

in my car someone put flour in the fuel tank and the fuel pump, pumped it into the injectors where it cloged them up

so i had to replace injectors pump filter now it is good

Dec 31, 2009 | 1984 Nissan 300ZX

1 Answer

'88 VW Golf GL Starts for seconds but dies.


check the air filter
fuel filter *
test the alternator

Apr 09, 2009 | 1988 Volkswagen Golf

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

152 people viewed this question

Ask a Question

Usually answered in minutes!

Top Porsche Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

ROBERT GARCIA
ROBERT GARCIA

Level 3 Expert

881 Answers

yadayada
yadayada

Level 3 Expert

75817 Answers

Are you a Porsche Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...