1992 Toyota Previa Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1992 Toyota Previa
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1992 Toyota Previa ProblemsFailed Emissions Test Due to Blocked EGR System
The EGR System tends to get restricted or blocked with carbon after 100,000- 125,000 miles which will cause an emissions test failure for NOX. If the EGR system is equipped with an EGR temperature sensor it will trigger a Check Engine Light for improper EGR flow. The repair is to clean out the EGR passages and the EGR Temperature sensor. Our technicians tell this repair is pretty straight forward and takes about 1-1.5 hours. It is also wise to verify the EGR system components i.e. the Transducer, EGR Valve and VSV Solenoid at this time.
A loss of power on the freeway may due to an internally leaking fuel pulsation dampener. This commonly occurs on higher mileage vehicles.
At higher mileages (125,000+) the mass air flow sensor may cause the vehicle to idle rough, run rich and even stall. It is recommended to replace the mass air flow sensor with a factory unit because the aftermarket units have very mixed results.
1992 Toyota Previa Questionscan I get a manual for dummies re: getting carbon out of a plugged egr system? (2 answers)
The van only has 122,000 miles and is in mint shape, literally. Just so you know that I know, the next comment is not referring to the hazard lights. my van won't start, the small marker lights at all four corners of the vans lighting system is flashing along with a relay clicking sound in th...