Get the manufacturer repair manuals...for the specifications and technical procedures.
P1399 Random/multiple misfire detected.
You can purchase a Toyota repair manual or ask us!
Repair the defect, and it'll shut the CEL off on its own.
There is no OBD II port on your '93 Villager. 1995 and earlier model were equipped with the EEC or OBD I. All other models starting 1996 had OBD II. Sorry !! Now, you can access the codes on the OBD I system but, you will need to have a repair manual for detailed instructions. Get one at your local parts store.
My Chilton repair manual shows OBD II code P0304 as ( misfire detection monitor and / or circuit fault ) and my Haynes repair manual shows OBD II code P0304 as ( cylinder no. 4 misfire detected )
OBD stands for "On Board Diagnostics". OBD-II gives the vehicle owner or repair technician access to the status of the various vehicle subsystems. The OBD-II standard provides an extensible list of Diagnostic Trouble Codes. Starting with vehicles manufactured in 1996, the OBD-II specification was made mandatory for all cars manufactured in the United States to be sold in the United States.
Click the link for info on PO410 Secondary Air Injection System Malfunction
An OBD II Code Reader, which reads vehicle engine codes, can be purchased in most larger automotive repair shops. Parts Source and Canadian Tire both carry them.
Most diagnostic scanners with Obd 2 will display on screen the problem, older Obd 1 codes can be found in the cars repair manual or in the guide that usually comes with the scanner.
Trouble code P0320 means:Ignition/distibutor engine speed input circuit malfunction. and you can use the Ford obd scanner to repair, you can DIY, it is easy.
It has obd 1It has obd 1