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1993 Toyota Pickup 2.4L Excessive Emissions, No Start, Poor Fuel Economy
Posted to Asian Driveability on 7/21/2011 5 Replies

truck failed smog check marginally for HC and CO low nox and 02, performed lamda calculation to determine fuel trim found fuel trim slightly rich, checked 02 sensor and found no wave pattern or switching signal on any wire, esp black signal wire on OE harness....

FIX posted 7/22/2011

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car Vehicle Data

1993 Toyota Pickup

VIN 1767188911
Engine2.4 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFuel Injection / F.I. 1 driver per pair
Emissionscalifornia
SymptomsExcessive Emissions, No Start, Poor Fuel Economy
OccursUnder Load,