91 240 fault codes 2-2-3 and 1-1-3

93Regina · Post by **93Regina** » 15 Mar 2015, 11:04

91volvo240 wrote:solve everything

High impedance Volt-Ohm meter is what is used to evaluate...via checking voltage/ohm readings at various points.

91volvo240 · Post by **91volvo240** » 16 Mar 2015, 21:47

I installed the new 02 sensor, but it didn't make any difference. The fault codes came back again.
I've checked the AMM and the IAC-- everything checks out fine.
As I was checking resistance on the control unit connector, I noticed that the readings were off on the TPS.
The service manual says to connect the ohm meter between ground an no.2-- the reading should be 0 (switch closed), then depress the gas pedal and resistance should increase to 2-3 kohm (throttle switch opens).
When I performed this test, I got 3 kohm without pressing the gas pedal. So, I adjusted the TPS until I got a reading of 0 with the throttle closed-- but the "click" I'm supposed to here from the TPS is gone when I do that-- so that means it's not adjusted properly right?
What am I doing wrong? It's a brand new TPS.
Getting close to pushing my beloved volvo off a cliff!

93Regina · Post by **93Regina** » 17 Mar 2015, 11:19

91volvo240 wrote:Getting close to pushing my beloved volvo off a cliff!

God no, don't shoot her. Just kick her in the butt ever so often.

93Regina · Post by **93Regina** » 17 Mar 2015, 11:26

91volvo240 wrote:When I performed this test

Do it, by the book: LH2.4 Manual Complete

Follow their instructions...