check engine light always flashing fast


Asked by Nov 04, 2015 at 02:26 AM about the 2000 Subaru Outback Base Wagon

Question type: Maintenance & Repair

i have a 2000 outback and i took it autozone because the check engine light is
alway flashing fast. Well it read p500,p1100,p1120 and p1540 why the
computer going bad on it. the only real problem i have been having is when
trying to kick into drive it takes it a few momen ts and it wont pass emissons

2 Answers


Any chance you connected any green plugs under the dash / foot jam area?


Trace the codes and proceed. The automatic "drive/reverse" delay is because the front seal in the trans has dried out, so it takes too log for pressure to build to engage. Change your ATF immediately, then drive a couple of days. Then change the ATF AGAIN, this time adding a bottle of seal conditioner along with the 3.5 qts ATF. In a few weeks Drive and Reverse response time might lessen. If not, throw the car away, as when this problem worsens the car will suddenly jerk forward when you're revving it and you might kill a pedestrian in a crosswalk. I am NOT kidding!

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