Hi, I'd suggest something like this would be better Harris Performance Controls (it appears to be a better controller and comes with a proper sensor that can be fitted into the cooling system - rather than a probe that is pushed into the radiator fins.)
Good luck with the fitting. Mine is still working perfectly.
I ask for help because I can make complete mechanical work on this type of engine H27A but not know much about electricity (about 30%) to use the temperature electric control system that exists in Australia (your control system in your SUV).
In the project I can purchase the Spal fans but do not know how to install the control system you have. However, I was thinking of using a similar system like this:
[urlDerale 16759 Adjustable Fan Control in Amazon.com[/url]
If you can help me get or build a better control system at amazon.com, I appreciate greatly please.
Given what you want an all terrain type tyre would probably be the best compromise- but you'll struggle in anything other than light mud. There's a lot on different tyre sizes and rubbing on the forums. I'm on the stock size and have Yokohama G012 A/T Yokohama Tyres | 4x4 All Terrain Tyres: Geolandar ATS G012 Tyre Prices, Sizes & Reviews they're an excellent tyre - even on road they're better than the previous highway tyres I've had.
Hi paul thanks for reply to my post I need some advices from you :-) can I fit 225/70/16 or 215/70/16 on my GV without lift suspension? What is the best brand? I 'd like to use it on the sand mud and rock but just during the weekend and I use it monday to Friday for go to work (I don't really like the noise of mud tyres) what do you think about it? Thanks a lot:-)
The fuel consumption I'm just living with. A different exhaust system might help - so might electric thermofans, free wheeling front hubs, new oxygen sensors etc. But I'm sure the expenditure would out weigh the gains.
Has your brother got the same series XL-7? The first series, with the older front end, is supposedly more fuel efficient (going by the published figures.)
I run mine permanently on BP Ultimate. It costs more but I just fill up when fuel is cheap. I'd much rather pay the extra for fuel than risk damaging the engine. You could try retarding the ignition timing (via the cam sensor- I believe their is some adjustment). Colder spark plugs might also help with detonation?
You'd be better off buying/ borrowing a stand alone air fuel ratio meter to check the mixtures. I assume you're in Australia? None of the XL-7's here seem to be OBDII compliant.
I have read few of your post and wanted to find out if you ever found a solution to common issues you experienced:
1. Fuel Consumption - Currently I'm getting average fuel consumption of around 13.5l/100km - mostly metro but highway is not much better . My brothers XL7 gets worst 12.5/100 and best of 11/100.
2. Detonation - If I fill up on standard unleaded and put the engine under load (driving uphill) I can hear detonation (pinning), if I use BP ultimate it doesnt happen.
3. ODB scanner - I have tried couple of the ODB tools and I'm unable to communicate with the ECU (tried different protocols and still nothing). I was hoping to use the tool to check fuel mixture which could explain the detonation.
I do have experience with detonation and know it can can cause engine failure if the cause is not discovered fast enough.
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