[A26B]

Originally Posted by karlaw

In regards to item 6, what is proper way to check fuel pumps ? .........................................

There are 2 fuel pumps, FP1 is the primary and FP2 is the secondary pump. For a cold start, both FP1 & FP2 will run until the engine reaches appx 176F, then FP2 will shut off. For a hot start, above 176F, both FP1 & FP2 will run, but after 2 sec, FP2 will shut off.

To determine the functionality of the pumps, they must be tested separately. There are 2 fuses. FP1 fuse is on the pass side of the dash in the fuse panel. The fuse is labeled FP1. FP2 fuse is under the passenger side dash kick panel. Remove the panel. The fuse is labeled FP2.

The procedure to check fuel pumps is as follows;

Cold Engine
Key off, Engine off
Attach Fuel pressure gauge line to fuel rail. Bleed down any pressure in the rail.

Testing FP1 (Primary Fuel Pump)

1. Remove FP2 fuse.

2. Turn Key on, Engine off.

3. Observe fuel pressure. Should be appx 45 psig

4. Key off, engine off.

5. Bleed down fuel pressure

Testing FP2 (Secondary Fuel Pump)

1. Replace FP2 fuse and remove FP1 fuse

2. Turn Key on, Engine off.

3. Observe fuel pressure. Should be appx 45 psig

4. Key off, engine off.

5. Bleed down fuel pressure

6. Replace FP1 fuse.