Starting a 986 after storage

[blue62]

Originally Posted by deemce1

2003 ~68,000 miles

Go through the steps I outlined then we will go from there..

Did the battery go dead or did you disconnect it during the storage period????

Do you have a check engine light on????

[deemce1]

Originally Posted by blue62

Go through the steps I outlined then we will go from there..

Did the battery go dead or did you disconnect it during the storage period????

Do you have a check engine light on????

Battery did not go dead. I had it on a Porsche charger while in storage.

No CEL on.

I will clean up the fuel injector relay now and report back. Thanks for the return replies

Where do I find the injector relay??

[blue62]

Originally Posted by deemce1

Battery did not go dead. I had it on a Porsche charger while in storage.

No CEL on.

I will clean up the fuel injector relay now and report back. Thanks for the return replies

Ok so not a ECU/DME relearning issue.

When you have the car running does it backfire??? miss?? anything like that????
When it dies is it just like it is running out of gas???? or something different???

The reason I ask that is:
If the car was stored with fuel that contains Ethanol...Ethanol is Hygroscopic (draws moisture from the air)....so your fuel could have water in it. If the car is missing,backfiring, acting weird while it is running then that could be the issue.

If the car was stored with Non-Ethanol fuel and the car runs fair for the few seconds but just seems to run out of fuel when it dies....
Then that seems more like just a fuel delivery issue.

I am on my computer multiple times a day so I will check back and see if I can help you out.

[deemce1]

Originally Posted by blue62

Ok so not a ECU/DME relearning issue.

When you have the car running does it backfire??? miss?? anything like that???? Nothing like this.
When it dies is it just like it is running out of gas???? Yes - just dies. Tach drops to zero. or something different???

The reason I ask that is:
If the car was stored with fuel that contains Ethanol...Ethanol is Hygroscopic (draws moisture from the air)....so your fuel could have water in it. If the car is missing,backfiring, acting weird while it is running then that could be the issue.

If the car was stored with Non-Ethanol fuel and the car runs fair for the few seconds but just seems to run out of fuel when it dies....
Then that seems more like just a fuel delivery issue.

I am on my computer multiple times a day so I will check back and see if I can help you out.

I should note that if I blip the gas pedal it does not like that and dies quicker. Almost like when you try to give a motor gas with the choke on full (snow blower reference).

[blue62]

Originally Posted by deemce1

I should note that if I blip the gas pedal it does not like that and dies quicker. Almost like when you try to give a motor gas with the choke on full (snow blower reference).

This is a long shot but you could try disconnecting your MAF sensor.
Lets see if forcing the ECU to a default fueling strategy changes anything.
If nothing changes then reconnect your MAF sensor and test your fuel pressure.

Problem is I don't have specs. for fuel pressure for your year of car.
It may have to be tested for fuel pressure at a shop.
Or perhaps a member like JFP in PA will jump in and have some better info for you.

So with all that ....
it does sound like you have a fuel delivery issue....faulty fuel regulator..faulty pump
clogged fuel filter... something that is causing low fuel pressure and or volume..
All those things are inside the fuel tank on your year of car...so best tested by a fuel pressure test.
or you possibly have gummed up fuel injectors.

[deemce1]

OK ----- One of the first things I had tried was pulling the MAF (as I remember reading something about the MAF when I first got the car). I ran some canned air past it and reinstalled. Did not resolve the issue (obviously). I just tried your suggestion to disconnect the MAF........... it started right up!!!! I am going to go get MAF Cleaner.


MAF Cleaner did not work. Ordering a replacement part.

Thank you for the assist!

[blue62]

Originally Posted by deemce1

OK ----- One of the first things I had tried was pulling the MAF (as I remember reading something about the MAF when I first got the car). I ran some canned air past it and reinstalled. Did not resolve the issue (obviously). I just tried your suggestion to disconnect the MAF........... it started right up!!!! I am going to go get MAF Cleaner.


MAF Cleaner did not work. Ordering a replacement part.

Thank you for the assist!

So your saying with the MAF disconnected it starts and runs fine????
Well maybe we found the issue.
If your ordering a new MAF order a Bosch these cars don't like any other brand for some reason.
Porsche MAF's are re-branded Bosch....
Rock auto has reasonable prices on them if they have one is stock.

When you install it be careful not to touch the resistor wire handle it by the plastic housing only.... they can be very sensitive.

Post up or send me a PM when you get it installed I like to know end results.
Please.

[Rob175]

From my experiences.....the "free" CEL that most retail shops offer are good....BUT they will NOT CLEAR THE CODES....something about "liability" they've told me. So yrs ago I bought an inexpensive code reader (Harbor Freight I think) that does a fine job on all my vehicles AND CLEARS the codes with one button.