Oxygen sensors help the computer make corrections in the car’s air/fuel ratio by measuring the oxygen content in the exhaust. Oxygen in the exhaust is a good measure of the efficiency of the combustion.
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Polishing Tailights
This article is about how to polish the ridges off of the Mk2 Scirocco’s tailights to give them a smooth, glassy finish. It makes me want to eat some candy!
Cleaning the CIS Airflow Sensor
This tech procedure is about cleaning the CIS airflow sensor for better running, and fewer starting and idle gremlins…
TPS wiring for Megasquirt
This article is about the Throttle Position Sensor on the throttle body, and why you may not need it at all.
Megasquirt: Fuel Lines and Fuel System
The fuel system under the hood needs changes to go from CIS to an EFI fuel setup. If your car already has a Digifant fuel system with EFI injectors, then you don’t need to do this!
An Example Megasquirt Parts List
This is just a quick list of the stuff you’ll need to do a proper megasquirt conversion. Read on…
Megasquirt Terminology
This covers all of those abbreaviations used in megasquirt talk. TPS, MAP, and all that stuff!
What is Megasquirt?
Megasquirt is a Do-it-yourself Engine Management computer.
This article covers what megasquirt is in general terms.
Headlight Relays
Why relay your headlights? What is a relay even? All of your questions are answered right here!
Relays make your headlights brighter by directly connecting them to the battery with a sort of remote switch called a Relay. It is a required modification for Scirocco II with European lights, the wires are different, and the wattages are higher.
US headlights on a lot of our cars have very low wattage, sometimes as low as 35watts. European headlights with H4 bulbs start out at 55 watts and can go above 120 watts per bulb. Stock wiring cannot handle this extra load. The way the headlight system works in a VW is for the power to go from the Battery to the fuse panel, through the load reduction relay, then up to the headlight switch, then all the way back out to the headlights.
A headlight relays system acts as a remotely controlled switch. Now the power runs from the battery to the relay to the headlight – a very short distance. The relay is told to turn on by the stock wiring. A relay uses far less current than the headlights do, taking a load off of your electrical system, and making your switch last longer.
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