Injector/engine cleaner
#1
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Would you or have you used it in the past? If so what?
I thinking of giving it a try in a one in a million chance it might help my high feul trims. Engine recently suffered HGF so might be worth a go.
However I dont want any remote chance of damaging anything, if there is a chance I'd rather not bother.
I thinking of giving it a try in a one in a million chance it might help my high feul trims. Engine recently suffered HGF so might be worth a go.
However I dont want any remote chance of damaging anything, if there is a chance I'd rather not bother.
#4
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Would you or have you used it in the past? If so what?
I thinking of giving it a try in a one in a million chance it might help my high feul trims. Engine recently suffered HGF so might be worth a go.
However I dont want any remote chance of damaging anything, if there is a chance I'd rather not bother.
I thinking of giving it a try in a one in a million chance it might help my high feul trims. Engine recently suffered HGF so might be worth a go.
However I dont want any remote chance of damaging anything, if there is a chance I'd rather not bother.
Cheers,
Don
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#8
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I like to use berrymans b12. Do at least double the concentration stated on the can.
My first guess on the high trims would be a vacuum leak. I have had them on all 3 of my current jags. I've noticed minor vacuum leaks (LTFT under 10 at idle) don't have much of an adverse effect.
If the trim is highest at idle, but normal at higher rpm (far less vacuum), then it is probably a vacuum leak.
The easiest way to find it is to get it smoke tested. If they find multiple leaks, just fix the worst one yourself and then see if trims are acceptable.
My first guess on the high trims would be a vacuum leak. I have had them on all 3 of my current jags. I've noticed minor vacuum leaks (LTFT under 10 at idle) don't have much of an adverse effect.
If the trim is highest at idle, but normal at higher rpm (far less vacuum), then it is probably a vacuum leak.
The easiest way to find it is to get it smoke tested. If they find multiple leaks, just fix the worst one yourself and then see if trims are acceptable.
#9
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Smoke tested with no leak, also its the same high fuel trim throughout the rev range when driving, which would also suggest that it isn't a leak as you would see a drop at higher rev's. I've given up trying to find the problem, both banks both LT and ST trims maxed.
Ill give the BG44 a go then as that's easy to obtain in the UK. How much petrol should I add it to, I want a strong clean if possible.
Ill give the BG44 a go then as that's easy to obtain in the UK. How much petrol should I add it to, I want a strong clean if possible.
Last edited by L80ous; 03-13-2014 at 05:24 PM.
#10
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BG44k is good stuff, it is powerful. When I would use it I would always add it to an empty tank at the gas station right before fill up. I would usually do a little bit stronger concentration than recommended on the can.
If that does not work, you could have a couple of the injectors flow tested to rule them out as the problem.
If that does not work, you could have a couple of the injectors flow tested to rule them out as the problem.
#11
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#13
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BG44 is good. Not snake oil.
However, in my experience.....
If you are suspicious of an injector problem the best bet is to remove the injectors for professional cleaning and flow-testing by a specialist.
Next best is professional on-the-car cleaning using specialist equipment that most any decent repair shop will have. 'Motor Vac' is a name that sticks out in my memory from years ago but there are many others. As far as I know they all work on the basis of flushing the injectors with a powerful solvent. BG, among many others, had their own version of this equipment/process.
Every fuel injected car I've owned, including three Jags, has repsonded well to both of the above.
The add-to-your-gasoline fuel injectors cleaners are least effective, IMHO. Not that they're necessarily *ineffective*, mind you, but they don't work as well as the other choices.
Cheers
DD
However, in my experience.....
If you are suspicious of an injector problem the best bet is to remove the injectors for professional cleaning and flow-testing by a specialist.
Next best is professional on-the-car cleaning using specialist equipment that most any decent repair shop will have. 'Motor Vac' is a name that sticks out in my memory from years ago but there are many others. As far as I know they all work on the basis of flushing the injectors with a powerful solvent. BG, among many others, had their own version of this equipment/process.
Every fuel injected car I've owned, including three Jags, has repsonded well to both of the above.
The add-to-your-gasoline fuel injectors cleaners are least effective, IMHO. Not that they're necessarily *ineffective*, mind you, but they don't work as well as the other choices.
Cheers
DD
#14
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Don
#15
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BG44 is good. Not snake oil.
However, in my experience.....
If you are suspicious of an injector problem the best bet is to remove the injectors for professional cleaning and flow-testing by a specialist.
Next best is professional on-the-car cleaning using specialist equipment that most any decent repair shop will have. 'Motor Vac' is a name that sticks out in my memory from years ago but there are many others.
However, in my experience.....
If you are suspicious of an injector problem the best bet is to remove the injectors for professional cleaning and flow-testing by a specialist.
Next best is professional on-the-car cleaning using specialist equipment that most any decent repair shop will have. 'Motor Vac' is a name that sticks out in my memory from years ago but there are many others.
Cheers,
Don
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#16
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Sorry for bringing back this thread but I do have a question. I put in some Lucas fuel injector cleaner and I was trying to rush because of the harsh winds we had today.
While I was trying to quickly put it in, I realized I didn't have the neck of the bottle through the filler flap. Is there a drainage tube inside the fuel filler neck that will just dump it or did it actually go in the gas tank?
I caught it before I got a whole lot and properly got it all the way in the next time.
While I was trying to quickly put it in, I realized I didn't have the neck of the bottle through the filler flap. Is there a drainage tube inside the fuel filler neck that will just dump it or did it actually go in the gas tank?
I caught it before I got a whole lot and properly got it all the way in the next time.
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