Salam, My Toyota Indus Corolla having 5A-FE engine giving 6km/L and I am very confused. I bought the car last month and the previous owner used the car on CNG. When i bought the car it was giving black smoke and carbon coming out of silencer (Like black water). Then my mechanic suggest me to change injectora as they were in bad shape. But I changed all these items:- 5afe injectors- Knocking Sensor- Thermostat valve- Spark PlugsBut still it is not giving good average. But the black smoke is gone. Please help me in this matter what else should I do?
Put it on diagnostics. Also Check map sensor and fuel pressure regulator.
I try to solve your problem
Map sensor is working fine. What is fuel pressure regulator where is it installed?
On fuel rail. And Be sure it has original injectors.
Wiring issue for sure. Connect check engine light and diagnose.
I had similar issue in 7AFE engine it was running in limp mode and giving 4 to 5 KMPL. turned out STA connection was missing to ECU. Fixed it and it use to give me 12 to 13 KMPL
Sorry but what STA stands for?
Your issue can be a different one. I just gave an example.
I have no issue just for knowledge
Its a engine Cranking signal that ECU needs.
Starter ignition signal.
Check your head compression of all four cylinders and plugs kese nikal rahi h
