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1995 Lexus SC 300 Repair Question


Topics covered: Engine, Fuel pressure, Fuel pump.
Mileage: 235,000 miles.

Asked on January 1, 2012

How can we find the trouble codes on this it does not have a port to plug the scanner into.

Car runs great for about 5 minutes then it starts running horribly no power.
Avatar Asked by kscox54

Answer

Replied on January 1, 2012

Did your check engine light come on while its running?Is it a lack of power or is missfiring real bad?

Tiny Answered by saturntech9 (expert)
23,200 answers provided
Replied on January 1, 2012

yes the engine light is on. It is lack of power. This is what we have for a code 25 26 71 78 on the motor side and 62 on transmission side.

Tiny Response from kscox54
1 question asked
Replied on January 1, 2012

I would start with the code 78 fuel pump control circuit.Get a fuel pressure gauge lets see what the fuel pressure is with the engine running and shut off.Code 25 is lean air fuel mixture code 26 is rich air fuel mixture code 78 fuel pump control circuit.

Tiny Answered by saturntech9 (expert)
23,200 answers provided