Thermactor testing (TAB & TAD)
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Joined: Jan 2001
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From: Connecticut
Thermactor testing (TAB & TAD)
On my '86 5.0L EFI, KOEO code 11 (pass)
but KOER I get error 44, " O2 detect rich, thermactor failure".
O.K. the exaust does smell "rich".
Doing the pin point tests, KC5 says
"Connect DVOM positive lead to VPWR circurt on TAB solenoid and negative lead to TAB circut on TAB. While observing DVOM, Depress and release throttle several times (to cycle output on and off)"
Then it states, "solenoids cycle on and off?
Well..... Watching the meter the circut changes from 12V to 11V and you hear a click repeatilly during cycling.
The question is, does a 1 volt drop and a click during cycling say they are working correctly? A true On and OFF?
Or should the circut go from 12v to like 2v to be a cycle?
Reamer
but KOER I get error 44, " O2 detect rich, thermactor failure".
O.K. the exaust does smell "rich".
Doing the pin point tests, KC5 says
"Connect DVOM positive lead to VPWR circurt on TAB solenoid and negative lead to TAB circut on TAB. While observing DVOM, Depress and release throttle several times (to cycle output on and off)"
Then it states, "solenoids cycle on and off?
Well..... Watching the meter the circut changes from 12V to 11V and you hear a click repeatilly during cycling.
The question is, does a 1 volt drop and a click during cycling say they are working correctly? A true On and OFF?
Or should the circut go from 12v to like 2v to be a cycle?
Reamer
