12Q VIA®, PN E100-6043 (9300)
Serial number 9300-1000 and later (without heater)
Cummins ISX 14–15L Engines
INSTRUCTIONS
Wear safety goggles to protect your eyes.
Wear Nitrile®, Neoprene® or PVC gloves to protect your hands.
Wear a long-sleeved shirt to protect your arms.
IMPORTANT! The following instructions must be read and understood before attempting to use the BG 12Q VIA®. Read product Safety Data Sheet before handling any BG product.

  1. Only a properly trained and certified technician may operate this apparatus.
  2. Make sure this service is performed in a well-ventilated area.
  3. Keep all hoses and tools away from moving engine parts.
  4. Check all lines, hoses, adaptors and points of connection for cracks and leaks before and after service.
  5. Do not spray solvents on flow indicator; clean using mild detergents only.
  6. Fluids being processed can approach 140°F/60°C and 90 PSI/6.21 Bar.
  7. Use extreme caution in handling hot hoses and adaptors.
  8. Use extreme caution opening vent and when installing and removing adaptors.
  9. Always bleed off pressure before and after each service or refill procedure.

The BG 12Q VIA® is designed to be used only with BG products described in these instructions. The use of any other chemicals or fluids with this system will void all warranties and could create hazardous conditions.

CAUTION! MAY CAUSE ENGINE DAMAGE OR FIRE IF LEFT UNATTENDED.

Initial Inspection

Before each use, inspect the general condition of the BG 12Q VIA®. Check for loose screws, misaligned or binding part of moving parts, cracked or broken parts, and any other condition that may affect the safe operation of the BG 12Q VIA®. If any of these conditions exist, have the problems corrected before further use. Do not use damaged equipment. CAUTION: All maintenance, service or repairs must be performed by a qualified service technician only.

12QVIA
  1. V2 process knob
  2. Flow indicator
  3. V1 pressure release
  4. G2 pressure gauge
  5. V4 vent valve
  6. V3 fill valve
  7. Service hose
  8. F funnel
  9. G1 engine vacuum gauge
Six Important Steps
  1. Talk to the customer. Ensure the vehicle is a proper candidate for this service. It’s crucial that the customer communicates any and all drivability issues.
  2. Verify the complaint. Identify the root problem. It may not be what you expected. Look at set codes and proper EGR function.
  3. Perform visual inspection. If any component on the intake, the engine, or the exhaust system (e.g. EGR cooler) appears to have been tampered with, confer with the customer before proceeding.
  4. Apply the correct, necessary BG procedure. A BG Diesel Induction Service may need to be performed prior to a BG DPF & Emissions System Restoration Service. Make sure you have adequate training to perform the service properly.
  5. Perform the BG DPF & Emissions System Restoration Service as instructed. If you have followed steps 1–4, this service has a greater chance of success.
  6. Always test drive and clear all codes after the service.
Preparing for Service
  1. Install 96 oz. (2.84 L) of BG 245 Premium Diesel Fuel System Cleaner, PN 24596, into the fuel tank.
  2. Hook up a recommended OEM or similar diagnostic scanner to the ALDL connector in the vehicle.
  3. Start the engine. Verify the scanner is communicating.
  4. Run engine to reach normal operating temperature (180°F/82°C).
  5. Attach 4.50 GPH spray nozzle to 25 hole injector housing.
  6. Attach the BG Injector Atomizer to the BG 12Q VIA® service hose.
  7. Turn V3 Fill Valve to “Fill” (I) and V4 Vent Valve to “Open” (I).
  8. Fill the BG 12Q VIA® with 4 gallons (15 L) of BG DPF & Emissions System Restoration, PN 2581.
  9. Turn V3 Fill Valve to “Close” (O) and V4 Vent Valve to “Close” (O).
  10. Apply shop air to the BG 12Q VIA® coupler. G2 Pressure Gauge should read 90 PSI.
  11. Turn vehicle engine off.

BG DPF & Emissions System Restoration Service
PROCEDURE

  1. Separate air tube located at the engine air intake manifold.
  2. Install BG 12Q VIA® Large Capacity Heavy Duty Adaptor Assembly, PN 9300-400, to the air intake. Make sure there is a solid seal.
  3. Start engine and, at idle, confirm:
    1. Engine is at operating temperature (180°F/82°C).
    2. G1 Engine Vacuum Gauge reflects 1” Hg/100 RPM. Note: 10” Hg at 1,000 RPM is the minimum.
    3. Scanner data stream is communicating and monitoring each system.
    4. Scanner is set to read vehicle RPM and all Exhaust Gas Temperatures (EGTs).
    5. Identify sensor position pre- and post-DOC, DPF and SCR.
    6. EGR is set to 0%. Disconnect the EGR.
  4. Accelerate engine to 1,200 RPM. Check G1 Engine Vacuum Gauge reading and allow the EGT DPF sensor to reach approximately 500–550°F/232–287°C and stabilize.
    Note: In general, the DPF inlet temperature should exceed the DOC temperature within approximately 15 minutes from the setting of the RPM level in a properly functioning system. If this is not observed, there is a reason. Common reasons include the DOC being coated with engine oil or coolant. The DOC may need time to bake off contaminants. Leave the RPM level set at 1,200 RPMs and monitor temperatures. It may take as long as one hour for the DOC to bake. Success is observed by two things: (1) a large billow of white smoke coming out of the exhaust stack and (2) the DPF inlet temperature will begin climbing as expected.
  5. With all the engine parameters stable, turn V2 knob to “Process” (I). Make sure the flow indicator shows fluid flowing.
  6. Closely monitor the scanner data for any sign of rapid increase in Exhaust Gas Temperatures. RPM/vacuum may need to be adjusted to maintain DPF temperatures of 950–1,050°F/510–565°C, or a maximum 350°F/176°C temperature differential at the DPF.
    WARNING: Reaching the maximum temperature differential could activate the vehicle’s protection parameters and shut down the engine. If maximum temperature differential is reached, turn V2 knob to “Close” (O) immediately. If for any other reason the engine shuts down, turn V2 knob to “Close” (O) immediately.
    Note: Raising RPM will increase temperatures and vacuum; lowering RPM will decrease temperatures and vacuum. Adjust in 50–100 RPM increments. If any of the EGT sensors reach 1,200°F/650°C or rapid increase in temperature is observed, turn V2 knob to “Close” (O), allowing the EGT sensors at the DPF to stabilize (950–1,050°F/510–565°C) before resuming service.
  7. After flow indicator is clear, turn V2 knob to “Close” (O).
  8. Remove shop air. Press and hold the V1 Pressure Release until G2 Pressure Gauge reads “0.”
  9. Return vehicle to idle and run for at least 15 minutes.
  10. Monitor scanner data to make sure engine and cooling cycle of the DPF system are functioning properly.
  11. After exhaust systems have cooled, turn engine off.
  12. Remove adaptors.
  13. Reconnect air tube and EGR.
  14. Perform BG Diesel Engine Performance Service installing 96 oz. (2.84 L) of BG EPR,® PN 10996, and 96 oz. (2.84 L) of BG DOC,® PN 11296.
  15. Test drive vehicle and clear any codes set during the service.
R00 December 6, 2019
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