The Pico Automotive Diagnostics Kit turns your laptop or desktop PC into a powerful automotive diagnostic tool for fault finding the increasing number of sensors, actuators and electronic circuits found on today's vehicles. The automotive kit is based around the highly successful range of Pico automotive oscilloscopes. These high resolution PC oscilloscopes connect to a USB port on your PC and can take up to 512,000 samples per trace, making it possible to capture complex automotive waveforms — including CAN bus signals — and then zoom in on areas of interest. Being PC-based these waveforms can then be saved to your PC for future reference, printed or emailed. Suitable for use with any modern vehicle automotive diagnostics kit The Pico Automotive Diagnostics Kit can be used to measure and test virtually all of the electrical and electronic components and circuits in any modern vehicle including: * Ignition (primary & secondary) * Injectors & fuel pumps * Starter & charging circuits * ABS sensors. Crank & cam sensors * Lambda, Airflow, knock & MAP sensors * Glow plugs / timer relays * Relative compression tests * CAN bus DOWNLOAD FREE: http://www.picotech.com/download.html
HEATED O2 SENSORS
HEATED O2 SENSORS To reduce the warm-up time of the sensor, an internal heating element may be used. Heated O2 sensors can reach an operating temperature of as high as 500 degrees C in as little as eight seconds! Shorter warm-up time means the system can go into closed loop fuel control sooner, which reduces emissions and improves fuel economy. Heating the sensor also means it can be located further downstream from the exhaust manifold. more info: http://home.btclick.com/mobiletuning/mt/oxygen.htm
Lambda sensor or oxygen sensor
The exhaust gas oxygen sensor (EGO or O2), or lambda sensor, is the key sensor in the engine fuel control feedback loop. The computer uses the O2 sensor's input to balance the fuel mixture, leaning the mixture when the sensor reads rich and richening the mixture when the sensor reads lean.
Lambda sensors produces a voltage signal that recognises the amount of unburned oxygen in the exhaust. An oxygen sensor is essentially a battery that generates its own voltage. When hot (at least 250 degrees c.), the zirconium dioxide element in the sensor's tip produces a voltage that varies according to the amount of oxygen in the exhaust compared to the ambient oxygen level in the outside air. The greater the difference, the higher the sensor's output voltage.
Sensor output ranges from 0.2 Volts (lean) to 0.8 Volts (rich). A perfectly balanced or "stoichiometric" fuel mixture of 14.7 parts of air to 1 part of fuel gives an average reading of around 0.45 Volts.
The lambda sensor's output voltage doesn't remain constant, however. It flip-flops back and forth from rich to lean. Every time the voltage reverses itself and goes from high to low or vice versa, it's called a "cross count." A good O2 sensor on a injection system should fluctuate from rich to lean about 1 per second. If the number of cross counts is lower than this, it tells you the O2 sensor is getting sluggish and needs to be replaced.
Most lambda sensors will cycle from rich to lean in about 50 to 100 milliseconds, and from lean to rich in 75 to 150 milliseconds. This is referred to as the "transition" time. If the O2 sensor is taking significantly longer to reverse readings, this too is an indication that it is getting sluggish and may need to be replaced.
Diesel/Gasoline Engine Conversion
Converting engines from diesel to CNG requires some good amount of expertise and may involve significant downtime. Suggested engine modifications to assure engine reliability, optimized power, fuel consumption and emissions may include optimizing compression ratio, valve lift, valve timing, exhaust system and intake manifold. Special attention goes to engine cooling, engine lubrication and the potential issue of excessive oil consumption. A properly modified engine can make the same power as the base engine. Diesel Engine Conversions May need to improve cooling system efficiency May need engine oil cooler May need new valve seats, guides and seals May need new pistons and rings Engine compression must be lowered May need a new camshaft Ignition system must be installed Cylinder head modifications are needed to install spark plugs Custom cam or crankshaft position sensors must be made Gasoline Engine Conversions May need to improve cooling system efficiency May need engine oil cooler May need new valve seats For higher efficiency, engine compression can be increased
CNG/LPG Timing Advance Processor
