[carolinaLX]

I'm new to this forum and looking for help. I've got a 1989 LX 2.3 n/a
I just rebuilt the motor thru out. Lately its messing up , rough idle and cutting out under load . I've replaced :

MAP
TPS
Fuel pump
fuel reg.
Ignition module
Fuel pump relay
air charge sensor
o2 sensor


If anyone can help it would be greatly appreciated. Thanks,greg

[rbrowntech]

Welcome to the site! Have you checked the ignition wires ?

[carolinaLX]

Thanks brown. Everything is new dist. cap , rotor , wires , plugs , fuel filter , pcv valve . I mean you name it and its new/rebuilt . I've been working on cars for years and this is killing me . The check engine light has never even come on.

[mg man 75]

Since new tuneup, I assume belt timing ok, Missing at idle, Do you have good spark on all plugs? No odd rattle noises? I had a miss on my 2.3 turbo like a bad plug, Plugs new, It was a dead fuel injector, Found out which one by unpluggin on fuel injector at a time with it running, Unplugging one made no differance in idle it was bad. When I unplugged a good one it died.

[carolinaLX]

I've got all new injectors on the way just want to check all wiring and fuel lines before putting them on

[b_chandler]

What do the plugs look like? Lean, Rich, or good?

[carolinaLX]

very lean and the OBD says the mix is lean as well in the run mode

[b_chandler]

vacuum leak? either a missed hose, or a gasket leak.

There's a vac line that goes under the throttle body that is frequently forgotten. I've missed it myself.