driving home from work today disco started to bog down and backfire really badly. recently put new 02 sensors and msd super conductor wires with Bosch +2's and changed all fluids all the routine stuff and its been driving fine but today not so much actually first time a rovers left me stranded

i also have replaced the fuel filter so idk what the deal is maybe electrical? or fuel idk hard to test and troubleshoot on the side of the road in 100 deg. heat

its reading a code 44 and the code inst clearing for some reason so idk if there are underlying codes.

there is a strong backfire inermitantly through the intake and it sound like the left bank but might just be b/c the air box is there?

will not go over 20 mph and not rev higher then 2800 rpm. engine turns over but it take a while and its drops real low and starts to back fire then will usually idle fairly smooth then in drive its useless

please any feedback on what to look for im thinking injectors or fuel pump? maybe ignition issues?

 

Check around the distribitor for a broken vacuum line, your timing is WAY off, either the distribitor tie down bolt came loose, your vacuum advance is loose/bad/missing or your timing gears jumped a tooth/broke a tooth.
Most likely it is with the distribitor.

 

Also continuted running the engine this way will blow it up.

 

ill check it again but it seemed fine cap was on good and still clamped down tight. timing seems fine on idle but not under load feels more like fuel starvation but ill go through it again any more ideas?

 

Timing being off on load means that the vacuum advance is not working.
If it was fuel starvation it would not back fire it would quit.

 

backfires when starting up under no load as well

 

Has to be engine timing.
Or bad spark plug wires.

 

thanks ill give it another look when i can get out there.

weird thing is. when it happend i stopped and tinkered with it let it cool down and tried driving again drove perfect and perfectly smooth like nothing was wrong but 1 mile later same thing happend so i just left it.

 

Crank Position Sensor maybe?

 

doesn't sound like it can anyone else throw out some ideas, i feel its something stupid just cant pin point fairly certain distributor and wires are good as i triple checked them.