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Join Date: Apr 2008
Location: Southern Maryland
Posts: 138
Garage
Another hard start.

1987 924S manual
Hi all. I have researched and read for days..
I was taking the car to park it on a for sale lot and it wouldn't start...

Previously it would crank over, start and barely run. Run very rich, and low rpm spit and then it would level out and be ok. It would drive ok...i attributed this to not being driven enough and sitting.
Then i parked it and no start. I could crank it forever with the occasion fire of a cylinder, but not start.
I then began the troubleshooting.
Good strong battery.
Grounds clean
Jumped fuel pump/DME relay
Tach Bounced
Fresh fuel
Vacuum lines checked.
I tried to start with one injector disconnected and the car started briefly..
This lead me to believe that the FPR was suspect. and supplying too much pressure.
No fuel found in the vacuum lines.

I don't have a gauge to attach to the rail.

I had an extra FPR. I swapped it in...no joy. I also tried to start with an injector disconnected. no start no change.
I put the original FPR in and no start even with the injector disconnected.

So, is there anything else i can try??? before i buy a FPR..
And not having a Fuel pressure gauge on the rail....
I have run all thru Clarks Garage and just wondering if there are any other things that i could try..

My next thing to try is to jump the temp sending unit to ground..where is it located

Thanks for all the help.

John

Ok...so, i only had a few minutes today to work on it but this is where I am..

Fuel pressure is at 38 consistently,
Noid light shows spark,
It started right up with one injector disconnected.
I hooked up the injector and it ran like crap..
I didnt get a chance to work on the AFM..

So what are your thoughts?

It was a bear to try and find hardware to connect the fuel pressure gauge!!!
Autozone wants 150 to borrow theirs, but it doesnt have the correct fitting to connect the rail.
So, i bought a fuel test gauge and a separate fitting from Loews, then had to connect with a piece of vacuum hose...totally rigged but it worked,,,
Old 08-07-2012, 04:23 PM
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Join Date: Apr 2008
Location: Southern Maryland
Posts: 138
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correction

Correction...I went out and double checked fuel pressure.
Fuel pressure was at 38....engine started fine with 1 injector off.
I revved it and FP dropped to about 28 and as long as the revs stayed up the press stayed down. I connected the other injector and it ran great,

No what..Problem is masking..
Old 08-07-2012, 04:50 PM
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Location: Charlotte, NC
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Since this is the for sale section, I'll sell you some information on what you can do.

A bargain @ $20.
Old 08-08-2012, 06:16 AM
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83 911 Production Cab #10
 
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Join Date: Jun 2009
Location: Ottawa, Ontario, Canada
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Quote:
Originally Posted by ssschaib View Post
Since this is the for sale section, I'll sell you some information on what you can do.

A bargain @ $20.
Is that include shipping?
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Who Will Live... Will See

83 911 Production Cab #10, Slightly Modified: Unslanted, 3.2, PMO EFI, TECgt, CE 911 CAM Sync / Pulley / Wires, SSI, Dansk Sport 2/2, 17" Euromeister, CKO GT3 Seats, Going SOK Super Charger
Old 08-21-2012, 06:12 PM
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