Question about Volkswagen Beetle
About P0304, checked coil pack w/ohmeter, 14.8 and 15.9 on all 3 pair which should be
good; resistance might be good but have you checked both coil packs and wires
to see if there are misfires when spraying theses components with water ?
I dont mean for you to use a garden hose, just a sprayer with water in
it, start car and spray on coils and wires, should see some sparks fly.
Also, check the vacuum lines. The hard plastic ones split at the force fit junctions particularly the large one going thru the firewall. The cotton jacket hosing is **** also.... That you are blowing rich smoke shows the ECM is dumping fuel to compensate for extra air in the system which causes a lean out pre-ignition or the plugs aren't firing. Other, check the brown ground wires next to #1 coil for a solid connection, both common problems.
Then, about P0506 code (Idle Air Control System RPM Lower Than Expected) is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.
Potential Symptoms: Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.
Causes: A P0506 DTC trouble code may be caused by one or more of the following:
Test it and tell us news.
Posted on Jul 14, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 28, 2013 | Cars & Trucks
Jan 26, 2011 | 2000 Volkswagen Beetle
Dec 09, 2010 | 2000 Volkswagen Beetle
May 21, 2010 | 2000 Volkswagen Beetle
May 01, 2010 | 2000 Volkswagen Beetle
Nov 16, 2009 | 2003 Volkswagen New Beetle Convertible
Jun 14, 2009 | 2001 Volkswagen Beetle
Feb 14, 2009 | 1998 Volkswagen Beetle
Jul 08, 2008 | 2000 Volkswagen Beetle
156 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: