Audi A6 C5 4.2L V8 5V BAS Secondary Air Injection Maintenance
The secondary air system is designed to enable catalytic converter to heat up and reach its operating temperature more quickly after a cold start.
Principle of operation
Due to extra mixture enrichment during cold-start phase, an increased amount of unburnt hydrocarbons is carried in exhaust gas. The secondary air system improves the afterburning (oxidation) process in the catalytic converter, and in this way reduces toxic emissions. Heat generated by oxidation accelerates “light off” of catalytic converter and significantly improves exhaust gas quality during warm-up.
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Water/Methanol Injection System for Chevy Cobalt SS/Iion Redline and All Ecotech Engines
Solenoid Upgrade (optional)
The optional Solenoid Upgrade (#40060) is required if the nozzle is to be installed after the intake throttle plate (as shown), or the fluid reservoir is mounted higher then the nozzle. It is highly recommended for trunk-mount reservoirs.
Finger thread the two 1/8” NPT quick connect fittings into ports labeled IN and OUT on the solenoid. Tighten an additional half turn past finger tight.
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2008 Chevrolet Cobalt

With a broad range of models, offering a variety of well-equipped and sporty choices, the Chevy Cobalt continues to shine as one of the segment’s most popular cars. The Cobalt enters the 2008 model year on the heels of a successful ’07 model year, which introduced several significant enhancements, including more powerful Ecotec engines. For ’08, the Cobalt builds on that powerful foundation with a streamlined model lineup and more standard safety and convenience equipment.
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2008 Chevrolet Cobalt SS 260hp Turbo

Developed by GM Performance Division (GMPD) and powered by a 260-horsepower (194 kW) turbocharged and intercooled 2.0L Ecotec engine, the Cobalt SS delivers 55 horses (41 kW) more than the previous Cobalt SS Supercharged, and its driving experience was validated on racetracks throughout North America and Europe, including Germany’s legendary Nürburgring circuit.
“The Cobalt SS is the very essence of Chevrolet’s fun spirit and serious performance,” said Ed Peper, Chevrolet general manager. “The horsepower will put a permanent smile on your face and you’ll find yourself wanting to turn around and zip through your favorite stretch of twisty roads again.”
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2004 Audi A3 Direct Petrol Injection and Ignition System
Mixture preparation – injection Servicing injection system General notes on self-diagnosis
♦ The engine control unit has a self-diagnosis capability. Before carrying out repairs and fault finding the fault memory must be interrogated. The vacuum hoses and connections must also be checked (unmetered air).
♦ Fuel hoses in engine compartment must only be secured with spring-type clips. Clamping-type or screw-type clips must not be used.
♦ A voltage of at least 11.5 V is required for proper operation of the electrical components.
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1992 Volvo 940 LH-2.4 Fuel Injection System Wiring Diagram
Component / Connector Locations
LEGEND 1/1 Battery 2/8 Overdrive relay 2/11 Relay, electric cooling fan 2/12 Relay, radio interference suppression 2/13 Relay, fuel Injection 3/1 Ignition lock 3/50 Throttle switch 4/6 Control unit, ECC 4/10 Control unit, ignition system EZ-K 4/15 Power stage, ignition system EZ-K 4/23 Control unit LH-jetronic 2.4 5/1 Combined instrument 4/40 Climate control MCC 6/25 Starter motor 6/31 Fuel pump 6/33 Fuel level sensor/primer Read more
1984 Chevrolet Corvette Fuel Injection System
FUEL INJECTION SYSTEM – DUAL UNIT TBI 1984 Fuel Injection GENERAL MOTORS ELECTRONIC – DUAL UNIT OVERHAUL DISASSEMBLY NOTE: Before performing any service on throttle body assembly, it is essential that throttle body be placed on a holding fixture (J-9789-118, BT 30-15 or equivalent) to prevent damage to throttle valve. Disassembly of each throttle body unit is the same. DO NOT interchange components between front and rear units.
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2005-06 Chevy Cobalt Exhaust System Installation
Exhaust System Removal:
1. Measure the exhaust pipe 7-1/2 inches forward of the rear axle and mark a line.
2. Using a saw or chain style pipe cutter, cut the stock system.
3. Using a 15 mm socket remove the two flange nuts.
4. Remove the front hanger from the rubber isolator and remove the front section of the stock exhaust system.
5. Remove the rubber isolator after the axle from both the vehicle and the exhaust system.
NOTE: Be sure to save all rubber isolators removed from the vehicle. They will be used to install the CORSA Performance exhaust system in later steps.
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2005 Chevrolet Cobalt Exhaust System Installation
Borla Performance Cat-Back ™ Exhaust System Installation
1. Using the hardware supplied, place the front muffler assembly up into position as shown in figure 5 making sure to install the hangers into the rubber isolators. Hand tighten the hardware for now.
2. Place a clamp over the expanded end of the intermediate pipe and set it into position as shown in figure 6 installing the hanger into the rubber isolator. Do Not tighten the clamp.
3. Place a clamp over the expanded end of the rear muffler assembly and set it into position as shown in figure 7 making sure to install the hangers into the rubber isolators. Do Not tighten the clamp.
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1999 Mercedes Benz Truck ML 430 Air Injection Pump Operation
M33 AIR pump Engine 104, 111, 112, 113, 119, 137,166: When actuating, the voltage supply of the engine is performed via the air injection relay. Engine 104, 120: When actuating, the electromagnetic clutch air pump is actuated by force. Work instructions NOTE: Trim panel of cylinder head cover or air cleaner take off. Bolt (5) unscrew Refer to Air Pump NOTE: Pay attention to ground cable. 5/1 Air hose detach. M33 Read more
