Checking Codes

[Grouseman]

I have a 86 4-Runner. Where and how do I check for Codes? My truck is missing on the lower end and tends to smooth out on top end. I need to figure out the problem. I've got a rebuilt motor with probably less than 10K miles.

Thanks
Gman

 

[TOYOTAPARTS]

Jump the timing connector and count the flashes of the check eng light long flash =10 and short flashes = 1...

 

[Hilux]

if you have the diagnostic box, its beside the fuse panel labeled IIRC, Diagnosis.

If its not there, there are two round plugs not connected to anything on the driver side fender. Check the FSM (DL it for free check the FAQ) but I think its the bigger of the two.

 

[WristPin]

the FAQ isn't just a name of a thread, its an actual thread. check it out.

 

[pappy]

Another pair of pics. The connector you want has the arrow. The tool you can use is the second pic.

 

[2ndGenToyotaFan]

This brings up a good point. When did they switch from the round connector on the drivers side to the check connector/diagnostic box on the pass side?

 

[Hilux]

This brings up a good point. When did they switch from the round connector on the drivers side to the check connector/diagnostic box on the pass side?

haha!

My Jan of 85, IFS, RTE 4Runner has has the box.

The 86 RTE truck I have has it on the fender....

 

[2ndGenToyotaFan]

Must have changed at different times for the trucks vs. 4Runners...

 

[WristPin]

4runners-
86 round plug
87 square plug like all the rest of em into the tacos

 

[TOYOTAPARTS]

first year on the pass side 1987