1996 V8 P0175 code

[defbird96]

Hi all. Bird is in the shop this morning to replace both oxygen sensors after scan tool produced P0175 code. I’m hoping this solves the issue where the idle drops after full warmup from cold start, and the engine stalls. I previously replaced the MAF and Idle Air Control Valve, which in retrospect, were probably okay. I don’t have access to a lift, and as a senior, didn’t want to try the oxygen sensor replacements with car just on a ramp. Plus I know it takes some time to get the original ones out w/o breaking or stripping threads. Has anyone else solved the stalling issue on a 4.6 V8 by oxygen sensor replacement?

 

[biddle]

The P0172 & P0175 code is often from the Oxygen Sensor.

 

[defbird96]

After another $500 “repair” bill, still no fix. At idle, engine is at about 750 rpm. Shift into Drive or Reverse, rpm drops, engine stalls. Dealer mechanic is at a loss trying to determine the cause.