1988 e-350 self test plugs

[seanimo]

can anyone tell me where the self test plugs are located on a 1988 one ton van?

[subford]

By the battery and fender.



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[seanimo]

Thanks finally found it on the passenger side dual batterys on this rig ,am I correct to ground the sti and run sto to positive to read codes?

[subford]

Originally Posted by seanimo

Thanks finally found it on the passenger side dual batterys on this rig ,am I correct to ground the sti and run sto to positive to read codes?

NO, ground the STI. Get behind the wheel with pad an pin, turn on the key and start counting and writing. Do not ground the STO.

For more information goto:
http://fordfuelinjection.com/?p=13