TorresTransport Posted March 3, 2015 Share Posted March 3, 2015 So I'm consistently getting the 4-5 wastegate code on my 2005 CHN613 yeah its got the E7 427 ASET engine, I basically want advice on what I should do change the harness to the wastegate, change the harness from the wastegate? Any advice would be very welcome! Thank you Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/ Share on other sites More sharing options...
turckster Posted March 4, 2015 Share Posted March 4, 2015 What is the reasoning for wanting to change the wiring? is it damaged? The reason for the 4-5 fault is the VGT is not in the correct position due to an electrical or mechanical issue. It could be cause by an air compressor that builds air too slow-- a VGT need at least 95 psi at all times or this fault will appear. Air governor cut out needs to be at least 130 psi on AC ETech engines. The problem could be a binding VGT linkage, bad VGT actuator or actuator solenoid, oil contaminated air supply to VGT actuator solenoid, VGT position sensor, connector/terminal corrosion or bad connection, calibration and so forth. With the engine running and at least 95+ air psi, the VGT actuator should nearly be touching the stop. It might move around a little but it should be nearly touching. Check electrical connectors for being secure, corroded terminals or loose terminals. All wiring should be secured and no exposed wire. Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/#findComment-281436 Share on other sites More sharing options...
TorresTransport Posted March 4, 2015 Author Share Posted March 4, 2015 Brother thank you very much!! I've had problems with a check valve on the trailer, that has gotten replaced, but I do believe the spring valve might be damaged or malfunctioning ...that has been dropping my psi rapidly from time to time. Will give the wiring and connections a thorough inspection Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/#findComment-281438 Share on other sites More sharing options...
Blacky Posted February 22, 2022 Share Posted February 22, 2022 I read your story about the 4.5 code however I just put a brand new turbo on brand new EGR valve check the wiring I don't see no parade wiring but yet I still have a 4.5 coat and I have over 120 lb air pressure at all times I'm getting lost and I don't see any wiring that has been afraid or anything else can you please send me an email at this address that I sent you thank you Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/#findComment-489967 Share on other sites More sharing options...
Blacky Posted February 22, 2022 Share Posted February 22, 2022 I read your story about the 4.5 code however I just put a brand new turbo on brand new EGR valve check the wiring I don't see no parade wiring but yet I still have a 4.5 coat and I have over 120 lb air pressure at all times I'm getting lost and I don't see any wiring that has been afraid or anything else can you please send me an email at this address that I sent you thank you Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/#findComment-489968 Share on other sites More sharing options...
Joey Mack Posted February 22, 2022 Share Posted February 22, 2022 Blacky,, you are responding to a 6 year old post.... what is your issue? To start, get a friend to look at the VGT actuator on the turbo. Then crank the truck and build up air pressure, you should see the actuator move, If not, got to the filter that is at the bottom of the engine on the left side in front of the starter... that little filter is for the turbo, and you need to be sure air pressure is there,,.. there is a small knob on the air lines at the fire wall near the steering column/shaft, it is the supply to the VGT controller.. jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/#findComment-489971 Share on other sites More sharing options...
Blacky Posted February 25, 2022 Share Posted February 25, 2022 On 2/21/2022 at 7:56 PM, Joey Mack said: Blacky,, you are responding to a 6 year old post.... what is your issue? To start, get a friend to look at the VGT actuator on the turbo. Then crank the truck and build up air pressure, you should see the actuator move, If not, got to the filter that is at the bottom of the engine on the left side in front of the starter... that little filter is for the turbo, and you need to be sure air pressure is there,,.. there is a small knob on the air lines at the fire wall near the steering column/shaft, it is the supply to the VGT controller.. jojo I also changed out the vgt controller with chocolate brand new in there then I still have the code now you said that supplies the airline what am I checking for because that all that does turn on off the air supply and I've already changed the filter out that you were talking about Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/#findComment-490251 Share on other sites More sharing options...
Blacky Posted February 25, 2022 Share Posted February 25, 2022 Just now, Blacky said: I also changed out the vgt controller with chocolate brand new in there then I still have the code now you said that supplies the airline what am I checking for because that all that does turn on off the air supply and I've already changed the filter out that you were talking about Is there a possibility that there's a sensor that might be bad that goes to the VGA or should I put a airline gauge in the supply line that goes to the VGA to monitor the air supply or should I put a voltage meter on the positive just make sure that it is still supplying the air or an extra ground I don't know where all those wires go that go to the VGA Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/#findComment-490252 Share on other sites More sharing options...
Vmac3 Posted February 25, 2022 Share Posted February 25, 2022 What FMI are you getting. This will help with the diagnostics. V 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39133-4-5-wastegate-fault-code/#findComment-490254 Share on other sites More sharing options...
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