Air Injection - Rough Idle or Stall After Cold Start

88mazda01

Category Applicable Model/s Subject Bulletin No. 039/88
4 1987-1988 ROUGH IDLE OR STALL Issued 2/2/88
RX-7 Turbo AFTER COLD START Revised




DESCRIPTION

If you encounter a vehicle with a rough idle or stall after cold start, this may be due to air leakage of the anti-afterburn valve located in air control valve. Test for this problem according to the procedure shown in this bulletin.
PARTS INFORMATION


PART NUMBER DESCRIPTION

N332 13 990 Air Control Valve



INSPECTION PROCEDURE

1. Start the cold engine and run it at idle.
2. Disconnect the air hose (air pump to air control valve) at the air pump.
3. Place a finger over the air hose opening.
4. Replace die air control valve, if air is sucked into the air hose at idle.