Dickman10 wrote:Injector feedback Values should be taken at operating temp, at idle, with no load!
above +/- 3 represents an issue
+/-5 Is a dead cylinder misfire!
No, the feedback values should be diagnosed from a coolant temperature between 30 to 40 degrees C.
You are right about the load, no air conditioning on. Nothing turned on.
Cold start right up to normal operating temperatures of 80 degrees C plus.
Allow half an hour or so.
I have tested the 1KD-FTVs this way since 2007.
3.0mm3 to -3.0mm3 is the range for the feedback values. Anything outside of this, then you must replace the injectors, as a set of four.
Other things to consider.
Injection volume : 5.0 to 12.0mm3.
If the fuel injection volume deviates from the above readings, there is a deposit/carbon problem. This condition is nearly as bad as the feedback values being out of range. Please take note of this important fact.
MAP : 95 to 105 kPa, idling.
MAF : 5 to 12 g/sec at idle.
Fuel pressure : 30 to 40 MPa.
EGR position : 0 to 65%, engine warmed up at idle.
Inspect suction control valve on the supply pump for damage especially if there is a rough idle problem.
Engine speed at idle : 700 to 800rpm.
Active tests.
Check for fuel leaks as an active test. Physically test for fuel leaks after the test has been performed.
Check the DLC for fault codes.
The Roo.