View Single Post
Old 07-04-2019, 02:34 PM   #5
JFP in PA
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
Quote:
Originally Posted by pcsbob View Post
Angry 986 Boxster In Limp Mode
My 2000 Boxster roadster with 2.7 is in limp mode. I have a P1502 code

My generic scanner say is it is "fuel pump relay end stage. I have read where it is actually "jacking spring" issue
If I clear the code, the engine smooths out and runs correctly
I have removed the throttle body, cleaned it and reinstalled. Problem remains.
The problem remains even after installing another throttle body,
I cleared the codes, recalibrated the throttle body by turning on ignition for 60 seconds(without touching the gas pedal), turning ignition off for at least 10 seconds, then turning the ignition back on, P1502 code reappears

I would really appreciate any advice on how I can get back on the road!

-Is the throttle body the problem?
If not, where should I look?
If the TB is bad, is it OK to try a used one or an aftermarket TB

Thank you

Bob
Nashville, TN area

Three possible issues:

Fuel pump relay faulty
Short circuit to B+
DME faulty

Check the fuel pump relay, if bad, replace
If relay OK, check wiring from DME to fuel pump relay for short circuit to B+; if shorted repair wiring harness, if OK you need a new DME.

Good luck...…..
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is online now   Reply With Quote