Codes 1, 6, 7??? I know what they are but why?
 

I have an 88 civic dx 4 door. Its bone stock mpfi automatic. When it gets warmed up it throw 1,6,7.

I know they are o2 sensor, ECT, TPS. But why would it throw all 3 at once. Anybody have any Ideas what I should check out?

Re:Codes 1, 6, 7??? I know what they are but why?
 

Maybe they are all bad.

Re:Codes 1, 6, 7??? I know what they are but why?
 

Like any code bad sensors or bad wiring

Re:Codes 1, 6, 7??? I know what they are but why?
 

it seems very
serprate but not

check the sensor ground wire for TPS,ECT

o2 my be result of a short and cuase fail
or the o2 is bad and other 2 problems are just a resultant of the faulty wiring or some type of tampering.

falkhen