Hi
Was just wandering if anyone is able to shed some light for me
I have just bough a 3.1td bighorn and there are 2 wires broken I believe they are for the quick warm sensor would this be causing any issues being open cuircuit or can it be left I feel the truck may be a little sluggish but have no previous experiance with isuzus to compare it withsome insight will be greatly apriciated
3.1 Td bighorn qws
Re: 3.1 Td bighorn qws
QWS only works below 10 degrees and its a primitive system as the guru's on here will tell you. They will say throw it out! haha
Re: 3.1 Td bighorn qws
Can anyone direct me to a step by step to remove it?
Re: 3.1 Td bighorn qws
It wont make much difference if you remove it or keep it there with wires disconnected unless the physical flap post turbo is closing up when it shouldn't be. To really improve the system, the whole flange where the flap is for qws is should be replaced with a straight through downpipe.
Heres my thread when I was asking about QWS http://clubisuzu.com/viewtopic.php?f=19&t=7739&p=47398&hilit=qws#p47398
Heres my thread when I was asking about QWS http://clubisuzu.com/viewtopic.php?f=19&t=7739&p=47398&hilit=qws#p47398
Re: 3.1 Td bighorn qws
not quite that simple.
Most of the above comments relate to the earlier 2.8 engine. The 3.1 needs and has a better system. The sensor is used to trigger the system which is controlled by coolant temperature. 2 Parts - the glow plug timer is very necessary on this engine as it needs to glow. The second part is to get a faster warm up and really only needed in cold conditions. This is a flap built into the exhaust roughly under the drivers seat. If this was stuck closed you would have very poor performance. Ive just had mine removed as part of an exhaust upgrade. Rarely needed in Wellington
Most of the above comments relate to the earlier 2.8 engine. The 3.1 needs and has a better system. The sensor is used to trigger the system which is controlled by coolant temperature. 2 Parts - the glow plug timer is very necessary on this engine as it needs to glow. The second part is to get a faster warm up and really only needed in cold conditions. This is a flap built into the exhaust roughly under the drivers seat. If this was stuck closed you would have very poor performance. Ive just had mine removed as part of an exhaust upgrade. Rarely needed in Wellington
Re: 3.1 Td bighorn qws
Cheers greeves
So from what your saying remove the flap but keep the sensor if I'm not mistaken would it generate any issues with the wires that have come off some how or does it purely get triggered by the switch and won't create issues till it's activated
So from what your saying remove the flap but keep the sensor if I'm not mistaken would it generate any issues with the wires that have come off some how or does it purely get triggered by the switch and won't create issues till it's activated
Re: 3.1 Td bighorn qws
If you look at it you will see its vaccum operated. Follow the pipes back to the solinoid and blank off the vac line there. The ecu will never know
Re: 3.1 Td bighorn qws
Hey geeves, could you tell me what this is for. everyone tells me its the second waste gate but I thought it was the QWS flap for my 2.8. I really don't know.
The lever was attached to a large actuator that had a line running to all the vacuum solenoids that I removed.
wth.jpg
The lever was attached to a large actuator that had a line running to all the vacuum solenoids that I removed.
wth.jpg
Re: 3.1 Td bighorn qws
I believe that is the qws in the exhaust pipe