Black1990jeep
NAXJA Forum User
- Location
- california
On my 1990 renix 4.0 I am trouble shooting the ecu stuff.
On the egr solenoid valve which is located next to the fuel pump ballast resistor I get the following...
with ignition on I get 3.75 volt across the connector (between the orange/black wire and green/ white wire) this measured with connector removed from the solenoid valve.
I however get 14 volts measured Orange / black wire to chassis ground point.
My understanding is the solenoid should always have positive battery voltage on the Orange / black wire when ignition is on, and that the green / black wire is a switched ground via the e.c.u. I ohmed the green / black wire to chassis ground and get 45 ohms, thus not a very good ground.
where should I look for the poor ground? The manual is not clear as to the wire routing now what connector or splices there maybe in the path to ground.
I am losing near 10 volts someplace. the 3.75 volts is not enough to trigger the egr solenoid
thanks!
Suggestions?
On the egr solenoid valve which is located next to the fuel pump ballast resistor I get the following...
with ignition on I get 3.75 volt across the connector (between the orange/black wire and green/ white wire) this measured with connector removed from the solenoid valve.
I however get 14 volts measured Orange / black wire to chassis ground point.
My understanding is the solenoid should always have positive battery voltage on the Orange / black wire when ignition is on, and that the green / black wire is a switched ground via the e.c.u. I ohmed the green / black wire to chassis ground and get 45 ohms, thus not a very good ground.
where should I look for the poor ground? The manual is not clear as to the wire routing now what connector or splices there maybe in the path to ground.
I am losing near 10 volts someplace. the 3.75 volts is not enough to trigger the egr solenoid
thanks!
Suggestions?