Page 2 - Tomco products display

INC.

Mixture Control Solenoids Throttle Position Sensors Platinum II Oxygen Sensors Idle Air Controls

What They Do: Adjust fuel mixture in computer What They Do: Monitor the throttle opening for What They Do: Measure the amount of oxygen in What They Do: Adjust air flow in the idle

controlled carburettors based on a signal from the computer to adjust fuel flow, engine timing exhaust and signal computer to adjust air/fuel ratio. circuit to maintain idle speed under various

oxygen sensor. and trans converter lock-up. load conditions.

Failure Symptoms: Low voltage output or slow
Failure Symptoms: Rough idle, surging, poor Failure Symptoms: Hesitations, tip in surge, reaction causes poor performance and economy, Failure Symptoms: Vehicle stalling, high or low

fuel economy, high hydrocarbon emissions. engine pinging, no torque converter lock-up. high hydrocarbon emissions. idle speed. 'Check Engine' light on continuously.

'Check Engine' light on.

Maintenance/Service: Perform periodic emiss- Maintenance/Service: Perform periodic emiss- Maintenance/Service: Check for carbon build-

ions checks. Replace according to manufacturer's Maintenance/Service: Inspect for proper ions checks. Replace according to manufacturer's up on pintle and clean passages every 25,000

specifications or every 25,000 miles. Watch for operation and adjust voltages when necessary. specifications or every 25 - 30,000 miles. Watch for miles. Replace according to manufacturer's

service light or 'Check Engine' light. Check for corrosion on connectors. service light or 'Check Engine' light. specifications.

®
Cam/Crank Position Sensors Mass Air Flow Sensors Sky-Guard EGR Valves Oxygen Sensor Tester

What They Do: Indicate position of cam (crank) What They Do: Measure weight of the air What They Do: Recirculate a metered amount of What They Do: The Tomco oxygen sensor easily

to computer. entering the engine in grammes per second. exhaust gas into the intake manifold to cool com- tests the voltage output from the oxygen sensor.

bustion temperatures and reduce NOX emissions.

Failure Symptoms: No start, extended cranking, Failure Symptoms: Hard starting, hesitation, An LED lights when the sensor produces a high

backfire on start up. stalling, surging, black smoke, catalytic converter Failure Symptoms: Rough idle, pinging, voltage and goes off when the sensor falls below

overheating, poor performance and economy. overheating, loss of power, stalling, surging, a low voltage.

Maintenance/Service: Check trouble codes and severe engine damage caused by detonation.

diagnose as necessary. Maintenance/Service: Check for trouble codes. This tester makes testing an oxygen sensor simple.

Rap sensor sharply. Replace the sensor if engine Maintenance/Service: Inspect every 12,000 to

stumbles when rapping sensor. 15,000 miles and during engine tune-up.