What is the ignition timing spec on this 1985 Ford emissions label?

14° BTDC at 800 RPM max with the transmission in neutral, after disconnecting and plugging the distributor vacuum hose and jumpering the two pins of the ignition module's two-wire connector.

What is the curb idle setting procedure?

With accessories off and the VOTM, air BPV, EGR valve and purge CV hoses disconnected and plugged: (1) in drive, set 650 RPM (575 RPM if under 100 miles) with the throttle stop screw, then rev in neutral and recheck; (2) connect manifold vacuum to the VOTM and in drive set 700 RPM (625 RPM if under 100 miles) by turning the VOTM. Reconnect vacuum hoses.

What is the fast idle specification?

1900 RPM in neutral on the highest step of the fast idle cam (1700 RPM for engines with less than 100 miles), with vacuum hoses at the EGR valve and purge CV disconnected and plugged.

What emissions certification does this label state?

The vehicle conforms to U.S. EPA regulations for 1985 model year new light duty trucks, with compliance demonstrated and designed for principal use above 4000 feet (a high-altitude calibration); it is catalyst-equipped.

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1985 Ford Bronco Emissions Decal - Vacuum Hose Routing & Tune-Up Specs (E5AE-9C485)

Ford VECI emissions decal with idle-set procedure and vacuum hose routing diagram

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Ford Important Vehicle Information (VECI) decal: base timing/idle-adjust steps (TDC, 650/700 RPM, 1900 fast idle) plus a vacuum hose routing schematic; calibration E5AE-9C4B5, plug ASF-32C.

AI caption October 2011 · Photo 29 of 135

This is the factory Ford Motor Company "Important Vehicle Information" emissions/tune-up decal (data spec plate) photographed on a vehicle, applicable to 1985 model year light duty trucks. The label gives complete engine adjustment procedures: preliminary steps (set parking brake, block wheels, engine at normal operating temperature, accessories off); ignition timing procedure (disconnect and plug distributor vacuum hose, jumper the ignition module two-wire connector, set 14° BTDC at 800 RPM max in neutral); fast idle setting (1900 RPM, or 1700 RPM for engines under 100 miles, with EGR and purge CV hoses plugged); and a two-step curb idle procedure using the VOTM (650 RPM in drive, then 700 RPM with manifold vacuum applied to the VOTM; 575/625 RPM for vehicles under 100 miles). It specifies spark plug ASF-32C with a gap of .042-.046 and notes the vehicle is a CATALYST-equipped high-altitude (above 4000 feet) calibration conforming to 1985 EPA light-duty truck regulations. Label part number E5AE-9C485-CCR is shown, along with calibration code ...4GAF4-AIP/EGR/TWC. The right half contains a color-coded vacuum hose routing schematic identifying components such as the A/CL bi-metal, ACV, PCV, EGR, TVVs, VCVs, VCS solenoids, purge CVs, air BPV, distributor, filters, and exhaust heat control valve, oriented to the front of the vehicle.

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Frequently asked questions

What is the ignition timing spec on this 1985 Ford emissions label?: 14° BTDC at 800 RPM max with the transmission in neutral, after disconnecting and plugging the distributor vacuum hose and jumpering the two pins of the ignition module's two-wire connector.
What spark plug and gap does the label specify?: Spark plug ASF-32C with a gap of .042-.046.
What is the curb idle setting procedure?: With accessories off and the VOTM, air BPV, EGR valve and purge CV hoses disconnected and plugged: (1) in drive, set 650 RPM (575 RPM if under 100 miles) with the throttle stop screw, then rev in neutral and recheck; (2) connect manifold vacuum to the VOTM and in drive set 700 RPM (625 RPM if under 100 miles) by turning the VOTM. Reconnect vacuum hoses.
What is the fast idle specification?: 1900 RPM in neutral on the highest step of the fast idle cam (1700 RPM for engines with less than 100 miles), with vacuum hoses at the EGR valve and purge CV disconnected and plugged.
What emissions certification does this label state?: The vehicle conforms to U.S. EPA regulations for 1985 model year new light duty trucks, with compliance demonstrated and designed for principal use above 4000 feet (a high-altitude calibration); it is catalyst-equipped.