(Edit: Shoud read PCM fried from jumpstart)
So my jeep was completely dead yesterday. I have something draining the battery and it doesn’t get driven much. So I attempted to use one of those high amperage jump start/ chargers but it wasn’t enough to get the motor to turn over much, I tried it probably 3 times and gave up. So I put it on trickle charge for 4 hours or so and unplugged it for the night.
Today I go to try to start it and it just cranks. I also notice the fuel pump is not coming on. So I hook up a scanner to see if the CPS is reading, and I only get like 2 PIDs showing up??
So I check all fuses and what not and even kicked the fuel pump on by jumping the relay, I hear the pump but it still won’t fire. So I’m thinking PCM is faulty so I throw in a spare PCM that’s only problem is the fuel pump ground driver is fried on it, so I ground the fuel pump driver and jeep fires right up....
So my PCM is shot and I think it might be from the jump starter thing. And no I didn’t not hook up the terminals backwards...
Any thoughts??
So my jeep was completely dead yesterday. I have something draining the battery and it doesn’t get driven much. So I attempted to use one of those high amperage jump start/ chargers but it wasn’t enough to get the motor to turn over much, I tried it probably 3 times and gave up. So I put it on trickle charge for 4 hours or so and unplugged it for the night.
Today I go to try to start it and it just cranks. I also notice the fuel pump is not coming on. So I hook up a scanner to see if the CPS is reading, and I only get like 2 PIDs showing up??
So I check all fuses and what not and even kicked the fuel pump on by jumping the relay, I hear the pump but it still won’t fire. So I’m thinking PCM is faulty so I throw in a spare PCM that’s only problem is the fuel pump ground driver is fried on it, so I ground the fuel pump driver and jeep fires right up....
So my PCM is shot and I think it might be from the jump starter thing. And no I didn’t not hook up the terminals backwards...
Any thoughts??