2009 LS GEN IV starting issue
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Teching In
Joined: Feb 2017
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2009 LS GEN IV starting issue Hello, I am new to the forum, and I am trying to work my way through helping my daughter swap a 2009 LS 5.3L and 4L60E into her 1988 Silverado. This is my second LS swap, but still very much learning. I used a painless wiring harness.
Engine cranks, fuel pressure 55PSI, it will pop a bit and try to start with starting fluid.
I am getting a P0340 code (camshaft sensor). I replaced the sensor to no avail. Supply voltage to the sensor is 5V with key on, and shows 5V on the sensor wire too, with key on.
My first question, is will the engine start with this code and no cam sensor signal?
I have read a few places about "clearing a code", what do I need to do to accomplish this?
Also I do not have the brake signal hooked up yet, will the lack of this affect the engine starting? Will the ECM allow a start without the signal.
Thank you for any help.
Engine cranks, fuel pressure 55PSI, it will pop a bit and try to start with starting fluid.
I am getting a P0340 code (camshaft sensor). I replaced the sensor to no avail. Supply voltage to the sensor is 5V with key on, and shows 5V on the sensor wire too, with key on.
My first question, is will the engine start with this code and no cam sensor signal?
I have read a few places about "clearing a code", what do I need to do to accomplish this?
Also I do not have the brake signal hooked up yet, will the lack of this affect the engine starting? Will the ECM allow a start without the signal.
Thank you for any help.
What engine controller are you using? You may need to install a cam sensor module for use with your ECU if it's not the one that came with your engine. Research 4x and 1x cam sensors and timing gears to find the info.
I was recently working on a Gen 3 engine. We were trying to get it to start and we succeeded. Later we noticed that the cam sensor was not plugged in. This was using a 411 ECU.
I don't know about the Gen 4 ECUs...
Andrew
I don't know about the Gen 4 ECUs...
Andrew
Thread Starter
Teching In
Joined: Feb 2017
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Got one issue fixed. To start out I am using the 2009 ECM and Throttle controller that were in the original vehicle with the engine and transmission.
These were reprogrammed by Painless Performance.
With help from Jason at Painless Performance, we figured out that the power wire and signal wire from the camshaft position sensor needed swapped. He said on that chassis, GM rolled those 2 wires in the last jumper section in the wire protector on the cam housing. So this cleared the P0340 code.
I now have no error codes. The engine will fire on starting fluid. I am not getting fuel. I have 55 LBS of fuel pressure at the fuel rails. I tested an injector on each side with a noid tester, and am not getting any pulse. I have 12V at the injector leads.
The check engine light is on during "run" and stays on during "Crank", showing 12V to the ECM in both states.
Any suggestions?
These were reprogrammed by Painless Performance.
With help from Jason at Painless Performance, we figured out that the power wire and signal wire from the camshaft position sensor needed swapped. He said on that chassis, GM rolled those 2 wires in the last jumper section in the wire protector on the cam housing. So this cleared the P0340 code.
I now have no error codes. The engine will fire on starting fluid. I am not getting fuel. I have 55 LBS of fuel pressure at the fuel rails. I tested an injector on each side with a noid tester, and am not getting any pulse. I have 12V at the injector leads.
The check engine light is on during "run" and stays on during "Crank", showing 12V to the ECM in both states.
Any suggestions?
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