Would a P1124 code prevent a car from starting

[Luckyman01]

I am still chasing a crank/ no start

[Starter986]

Would a P1124 code prevent a car from starting?

Yes.

At this point you might find a good indie to look into it.

Username doesn't check out. Good luck, er, best wishes.

[mikefocke]

So what causes a P1124?

Fuel pump, wiring or DME?

There are 3 subcodes. A PIWIS or PST2 could be used to point to which one is present. Each subcode has three possible listed causes.

And now things get fun or expensive or both. Good luck.

[Luckyman01]

Sounds like the start of a sad tale, I do not have advanced testing tools.

Thanks

[Luckyman01]

Username doesn't check out.

What does this mean?

David

[Starter986]

Originally Posted by Luckyman01

Username doesn't check out.

What does this mean?

David

"Luckyman"...

If you've time, just keep troubleshooting. Take detailed notes... what you did... what didn't work. Keep searching these pages. Someone else has been there, and maybe shared a solution. If you exhaust all efforts, then you can source an indie. Good luck, er, best wishes.

[Luckyman01]

I am out here, legit

[JFP in PA]

P1124: Fuel/air mixture is so lean on bank 1 that the DME can no longer compensate.

Possible causes:
- intake system air leak
- Fuel pressure too low
-Plugged fuel injector
-Fuel volume delivery too low

[Gilles]

Luckyman, you have to be patient and do a thorough troubleshooting, eventually you will get the car running

Since you can crank the engine, then I would next check for fuel, can you hear the fuel pump running? If so, then you check fuel pressure and flow, for this you don't need any fancy tools, not sure if where you live the auto part stores have tools that you can borrow or rent (for the fuel pressure tester, for the fuel flow you need an empty container and a watch.

Note: All cars are supposed to have a safety switch that cuts power to the fuel pump when you get involved on an accident, but don't know how the Porsches address this issue (someone that knows please share your comments)

After confirming that you have fuel then you check for spark, I am sure that you know this but by a process of elimination you will find the cause, good luck!

[JFP in PA]

Originally Posted by Gilles

Note: All cars are supposed to have a safety switch that cuts power to the fuel pump when you get involved on an accident, but don't know how the Porsches address this issue (someone that knows please share your comments)

Porsche does it thru the crank position sensor; of the DME does not see engine rotation, it shuts off both the fuel and ignition systems.

But as his problem is only on one bank of the engine, it ain't the CPS.

[Gilles]

[QUOTE=JFP in PA;655837]Porsche does it thru the crank position sensor; of the DME does not see engine rotation, it shuts off both the fuel and ignition systems.[QUOTE]

The safety systems that I was aware of, have a type of a 'safety switch' that opens upon a measured impact or g-force, that sometimes get triggered by hitting a large pothole..

[JFP in PA]

Originally Posted by Gilles

The safety systems that I was aware of, have a type of a 'safety switch' that opens upon a measured impact or g-force, that sometimes get triggered by hitting a large pothole..

Which is why they chose to use the CPS, as these cars are often under high G loads on both the track and the street. The only impact activated sensor in these cars is for the air bags.................