ok, this time this truck has me stumped. 97 f250 4x4, 460 ci. . check engine lite came on, broke out the trusty code reader and can't find the obd port. looked under drivers side dash, nope, all I could find was an eec port under the hood on drivers side fenderwell. the reader's connector won't fit. anyone care to enlighten me. dealer says it's under dash but 15 mins. of looking got me nothing but a headache. thanxs
Thanxs guys. I guess thats what threw me. I assumed that year would have it inside. Is there an adapter made to fit between my obd II reader and the eec? And while Iam online what is the purpose for the vaccum tube and canister filter coming off the H shaped fixture in my intake tubes going to the intake manifold. These would be answered if I could find a shop manual. BTW, this a great forum, glad I found it.
OBD-2 scanners are often of no use with OBD-1 vehicles so you're probably gonna need to get an OBD-1 code reader(Equus 3145) or flash the codes on the check engine light. The second method is pretty easy to setup, put a jumper between the STI and Sig_Rtn lines in the EEC test connector, turn the key to run and the codes will begin flashing out.
looks like C5 is pretty close . IAC valve maybe ? no wires, looks like 1/2 or 3/4 hose from intake to filter to plastic piece inline with intake tubes from airfilter to throttle body. When it's unplugged from intake tube device(?) it pulls some serious vaccum!