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thstone · 12-27-2018, 09:06 AM

There are many components that can create symptoms similar to "limp mode": bad throttle pedal sensor, bad MAF, clogged fuel filter, bad fuel pump, dirty fuel injectors, problems with wiring/connectors, partially blocked/clogged air intake, etc.

I've experienced similar symptoms on four different occasions due to bad MAF, disconnected MAF, clogged fuel filter, and a partially blocked intake.

As Anker suggests, check for ECU codes first using a Porsche specific reader. If there are any codes, post here and someone will help you with diagnosis. If no codes, then you'll have to systematically work through the various possibilities one by one.

12-27-2018, 09:06 AM	#3
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	There are many components that can create symptoms similar to "limp mode": bad throttle pedal sensor, bad MAF, clogged fuel filter, bad fuel pump, dirty fuel injectors, problems with wiring/connectors, partially blocked/clogged air intake, etc. I've experienced similar symptoms on four different occasions due to bad MAF, disconnected MAF, clogged fuel filter, and a partially blocked intake. As Anker suggests, check for ECU codes first using a Porsche specific reader. If there are any codes, post here and someone will help you with diagnosis. If no codes, then you'll have to systematically work through the various possibilities one by one. __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor Last edited by thstone; 12-27-2018 at 09:11 AM.