1983 Porsche 944 pulsates at idle, I need it to pass CA smog

Asked by Oct 02, 2016 at 02:01 PM about the 1983 Porsche 944 STD Hatchback

Question type: Maintenance & Repair

Car starts up good and runs just fine but once it is warmed up it starts to pulsate when you come to a stop and has a similar issue when letting off the accelarater but is much more noticible at a stop.

2 Answers

237,995

vacuum leak?

1 of 1 people found this helpful.
1,680

Like Tom above says, a vacuum leak is a strong possibility in a car that old. There are vacuum lines under the intake manifold, and as the car heats up they soften. Changing them all is a smart way to start. Next try cleaning your mass airflow sensor with the correct cleaner. Its delicate, so don't touch it! Just use the spray. If that doesn't help I'd try changing the throttle position sensor, an easy fix (if that's the problem) for around $75 at Rock Auto.

Your Answer

Add photo

Related Questions

  • how tro reset catalystic coneverters for a 2004 4S 1 answer

    trying to smog my 911 4S ans showing incoplete

    2004 Porsche 911 Carrera 4S AWD

    -

    Maintenance & Repair

  • 912e can it be smogged in California 4 answers

    Can a 1976 912e be smogged in California?

    1976 Porsche 912

    -

    General

  • Restore or Modify? 1 answer

    Alright, I'm hainvg trouble making up my mind on what to do. I have a 1976 Porsche 914 that I've blown the motor on. I'm trying to decided if I want to take the opportunity to restore the car. (94m...

    1976 Porsche 914

    -

    Car Customization

  • Can you pass Smog in Ca swapping electric fuel pump on a mechanical one 6 answers

    My jeep has an aftermarket electric fuel pump, previously had to be Mechanical, but I guess they swap the engine and that is what I'm left with. The technician did not pass it at the smog, so now I'm...

    1986 Jeep Cherokee 2 Dr Pioneer 4WD

    -

    Maintenance & Repair

  • 77 f150 what parts do I need to pass smog? 2 answers

    This truck did not come with catalytic cnverter In it's original condition ...does any one know what parts it needs fr the smog?

    Maintenance & Repair

Search Porsche 944 Questions

Porsche 944 Experts

#1 Robert DeNicola
Robert DeNicola
Reputation 250
#2 Adam Morgan
Adam Morgan
Reputation 210
#3 Stephen Smith
Stephen Smith
Reputation 160
View All

Related Models For Sale

Used Porsche 911
93 Great Deals out of 4,510 listings starting at $9,995
Used Porsche 928
33 listings
Used Porsche 924
12 listings
Used BMW 3 Series
973 Great Deals out of 31,729 listings starting at $1,000
Used Chevrolet Corvette
120 Great Deals out of 20,753 listings starting at $3,000
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.