| CHECK FUEL PRESSURE. |
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After connecting the pressure regulator vacuum hose, measure fuel pressure. CAUTION: Release fuel pressure before removing the fuel pressure gauge. NOTE: • If fuel pressure does not increase, squeeze fuel return hose 2 to 3 times, then measure fuel pressure again. • If the measured value at this step is out of specification, check or replace pressure regulator and pressure regulator vacuum hose. |
| QUESTION | |
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Is the measured value 230 — 260 kPa (2.35 — 2.65 kg/cm2, 33 — 38 psi) ? | |
| Yes | No |
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Repair the following item. Fuel pressure is too high: • Faulty pressure regulator • Clogged fuel return line or bent hose Fuel pressure is too low: • Faulty pressure regulator • Improper fuel pump discharge • Clogged fuel supply line |