Here is a printout from my otc scanner. The knock active is on, but the voltage is less than 0.8 volts, which is what the Minimopar site says is the starting point for knock with Chrysler computers. The scanner is showing knock as being active, but I have no speckles on my plugs and the compression is still good in all four cylinders. The car is an 88 Lebaron running an 89 2.5L cal with a stock 2.5L TI thats intercooled with a garrett turbo. I am also running a G valve. Is the voltage actually lower than 0.8 volts to indicate knock?
Thanks,
Ben Huebner
CHRYSLER 1989 2.5 TURBO VIN J
FAULT CODES: 62
-- BASIC INFORMATION BLOCK --
ENGINE COOLANT TEMP 190 F
IDLE RPM X 10 095
INJ PULSE WIDTH 18.9 MS
MAP 48.1 IHG
O2 VOLTS 0.94 V
ENGINE RPM 3542
THROT POS SENS VOLTS 3.00 V
TPS MINIMUM 1.14 V
-- ENGINE INFORMATION BLOCK --
BARO PRESSURE 27.5 IHG
BARO PRESSURE VOLTS 2.34 V
BATTERY TEMP 060 F
BATTERY VOLTS 14.1 V
ELECTRONIC ADV/RET 007 DEG
KNOCK ACTIVE YES
KNOCK RETARD #1 000 DEG
KNOCK RETARD #2 000 DEG
KNOCK RETARD #3 004 DEG
KNOCK RETARD #4 000 DEG
KNOCK SENSOR VOLTS 0.72 V
MAP VOLTS 3.84 V
VEHICLE SPEED SENS 054 MPH
-- MISC. VEHICLE DATA INFO. --
ENGLISH/METRIC ENG
------ PRINTING COMPLETE ------