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Trouble Shooting Chart
Symptoms Test Results Diagnosis and reference number for below
Engine light comes on Turn gas off Light goes out Injectors not physically able to close down enough (5)
Hook hoses together with gas off Light goes out Unit is restricting too much air (1)
Engine surges at idle consistently Shut gas off, hook hoses up together Surging stops Unit is restricting too much air (1)
Surging continues Check for a vacuum leak
Engine is hard to start or flooding occurs Take off 1/8" copper tubing at unit Gas spurts out inconsistently Vapor locking is occurring (2)
On fuel injected models only !
Gas continues after engine is turned off		 Make sure the tee is in the return line (3)
Run clear hose test with the PCV line connected Is the gas moving slower than when PCV line is disconnected PCV line is restricting too much air (7)
Check the position of the unit Is the vapor out hose higher than the unit Raise unit so the hose is going down from unit
Check vapor adjustment Is the lever down more than half way Close adjustment, and start over, moving it a 1/16" at a time
Idles rough on carbureted vehicles Check for fuel filter between gas tee and carburetor No Clean or replace needle valve in carburetor
Yes See: "Hard to Start" in Row 1
Sludge chamber fills up with gas Turn engine off Gas drips in sludge chamber Tee is in high pressure line on fuel injection or the gas line has a lot off pressure and volume on carbureted vehicles (3,4)
Take off 1/8" copper tubing at unit Gas spurts out inconsistently Vapor locking is occurring (2)
Disconnect vapor out hose at unit Vacuum on vapor out nipple Switch hoses around on the unit
No vacuum on hose Hose or intake manifold port plugged
Test Vacuum on PCV nipple no vacuum Faulty unit, send back for repairs
Pull PCV valve No vacuum Replace PCV valve
Gas mileage not consistent Take off 1/8" copper tubing at unit Gas spurts out inconsistently Vapor locking is occurring (2)
Changes with gas fill up or in different climates Pressure is building up in gas tank Release Gas Cap a 1/4 turn
No results in gas mileage Open vapor control lever all the way Engine doesn't flood Open the gas tee more
Check vapor out hose Is it less than 4' Replace with 4' hose
On fuel injection, increase in horsepower is noticed but not in gas mileage Check oxygen sensor Replace if necessary
On carbureted, check tail pipe Is it black or does it throw black smoke when started Float in carburetor needs lowered

Code Numbers and Special Tips.

  1. If the unit is restricting too much air, then a simple bypass may be installed. The two lines that are hooked to the unit are both teed into with a valve between them. Open this valve until the right balance of air has been accomplished.

  2. Vapor locking occurs when the gas starts to boil inside the tee or gas line. This can be taken care of by rerouting the gas line and tee to a cooler place such as the firewall or insulating them from the heat.

  3. On fuel injected vehicles the return gas line will sometimes be smaller than the supply line and will be free of fuel filters and auxiliary fuel pumps.

  4. If gas drips in the sludge chamber after the engine is turned off make sure the tee is in the return line. If there is no return line or the gas line has a lot of pressure on carbureted units, then a solenoid will need to be installed in the 1/8" copper line. This will shut the gas off running to the Fuel Atomizer 2000 when the ignition is turned off. Call 1-740-654-1022 for more details and cost.

  5. Sometimes the injectors are not capable of closing down enough to compensate for the added vapor even though the vehicle gets an increase in mileage. In such a case the vapor control adjustment may be turned down and a little mileage sacrificed. Or you may talk to your local dealer for Injector or computer options.

  6. If your vehicle does not have a PCV valve the unit may still be installed. Look for a CVC line or a vacuum line that runs from the crankcase to the intake manifold and use this line. If not, call 1-740-654-1022 for an air control.

  7. If The PCV line is not allowing enough air to pass through it. The PCV valve may be partially plugged, or a tee with an air adjustment may need to be installed in the PCV line, as to allow more air to enter the system.