1992 Explorer idles good and takes off like a turtle

[parkstriton]

Please help Ive put too much in this thing to ...uhhhh
Ive had AAA transmission rebuild the auto tranny, replaced the old belt, hoses, plugs swapped wires with another (that ran like scalded dog before and after)as well as the maf sensor and the thing on top of the plenum , new hO2 sensor, it has no vaccuum leaks.

The speedometer doesnt work and the tach holds steady at 3000-3500
at all times (broke also). Would thes have anything to do with the engine control module?

The engine tachs up pretty good with me under the hood but it has absolutely no power it bogs down when you floor it (rolling) and barely accelerates.

[jaskel]

maybee dirty injectors/filters

[amac209]

i would check for a plugged exhaust. install a pressure gage in the O2 sensor hole. if the pressure exceeds 3psi you have a problem. another way of checking is unhook the exhaust before the cat and go for a burn, your neighbors will love you. also change your fuel filter.

[jaskel]

Originally Posted by amac209

another way of checking is unhook the exhaust before the cat and go for a burn, your neighbors will love you.

haha i remember i have done that on my WRX and also my v8 commodore with full extractors...that got the neighbors screaming..haha