Greetings all:

 

I need to smog my 90 Loyale in California. Does anyone know if a CEL that comes on makes for an automatic failure. The CEL is coming on intermittantly, and I haven't yet checked the code.

 

Thanks.

belizeanbus

Greetings all:

 

I need to smog my 90 Loyale in California. Does anyone know if a CEL that comes on makes for an automatic failure. The CEL is coming on intermittantly, and I haven't yet checked the code.

 

Thanks.

belizeanbus

 

Technically, yes. However some Smog guys are less stringent.

Greetings all:

 

I need to smog my 90 Loyale in California. Does anyone know if a CEL that comes on makes for an automatic failure. The CEL is coming on intermittantly, and I haven't yet checked the code.

 

Thanks.

belizeanbus

 

Check the codes. It may be simple fix. Pull the lower dash panel(under steering wheel)

 

BOlted to the bottom of the column is the ECU. It has a tiny window with a light visible through it. Turn start the car and watch that light. If it blinks a eries of long and short beeps that is a code.

 

Search here for more in depth process. If no codes come up while engine is running, then you can exctract codes form the past by using the white "read" connectors, and you can make the ECU diagnos itse;f by uing the green "test" coinnectors" Both connectors are under the hood, just above and beside the brake resevior.

Most places wont even hook it to their machine if the CEL is on.

These older cars are not OBD II. So there is no strict standardiztion. It's possible for a CEL to come on in this case for conditions that wouldn't nessecarilly cause emmissions failure. Now, the tech may not know the differnce. But I don't think in an early non standardized system, that they could fail you for the light alone.