ok so my 89 camaro 2.8 started stallin jerkin n what not ses light on run codes get 34 and 13 maf and o2 disconnects ecm under hood reads codes just 34 replaced maf codes gone but every now and again it wats 2 studder uses a lota gas runs rich and got codes 34,13,and32 i knw y i have 32 and its an easy fix but im trying get my car running rite again thx n advance just 4 reading

 

Code 13 is the o2 sensor circuit. You may have a poor connection in the wiring, a faulty circuit also from my book it could be a bad ECM although this is rare. If you are still getting a code 34 try checking your MAF wiring also could be linked to a bad ECM.

 

thx checked o2 cleared codes now 32 showing every now and again

 

code 32 is your EGR system could be a faulty EGR valve or the vacuum line that goes to it could be cracked.

 

could also be a bad egr solenoid.

but it sounds like the egr could be sticking open and causing rough running issuses.

should be only open during cruse not idle or wot.