Jerjer

I had a very similar problem on my 91 I checked everything turned out to be a couple of bad plug wires.

Installed new NGK plugs and wires and all was as it should be.

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Hey guys I'm not sure if this is the correct place for this

But I have a good working lcd screen looks like new I aquired three of them,

Used one sold one and have one left.

Its the lcd screen on the board not the entire hvac control

Shoot me and offer collierjarrod@yahoo.com

Oh yeah I live in socal

Well problem solved and I cant believe what fixed it

Since it was do for a tune up I replaced the plugs and wires and its fixed

I never would have thought thats all it was, while I was at it Cleaned the throttle body and intake and installed a k&n filter and wow this thing hauls !Removed! way better then before

This is the same problem with my 91 was this problem ever resolved any imput would be great

I checked primary resistance and secondary with a multimeter

Well its better when cold but still runs like crap

Hey guys well Im new to your site and I need your help with my 91 ls400

My car is giving codes 25-26 and is running rich and fowling the plugs and mising really bad.

It runs better when cold the codes are rich and lean fuel condition Im not worried about the lean just the rich.

I have cheched the wires and coils and they are good I really dont want to geuss and throw parts at it

Any advice would help