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Author Topic: Engine Loom  (Read 42654 times)

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Steve B

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Re: Engine Loom
« Reply #240 on: 19 March 2015, 21:26:11 »

Just upload a CSV / Excel file somewhere with all the readings in.. assuming you're using the reader that shall remain nameless.
I took 12 live data readings owing to fault codes coming so stopped to reset codes...These reading start  from cold and go until tha fans kick in...

Like you say,They are CSV files and you need  Excel or star office to read them

https://dl.dropboxusercontent.com/u/70807181/take1.csv
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JamesV6CDX

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Re: Engine Loom
« Reply #241 on: 19 March 2015, 22:59:24 »

The open circuit lambda is likely to be because I left one unplugged after testing stuff, no concern there

When are you free for me to come and play in daylight? :y
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Steve B

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Re: Engine Loom
« Reply #242 on: 19 March 2015, 23:13:25 »

The open circuit lambda is likely to be because I left one unplugged after testing stuff, no concern there

When are you free for me to come and play in daylight? :y
i thought that  ;D
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JamesV6CDX

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Re: Engine Loom
« Reply #243 on: 19 March 2015, 23:14:57 »

The open circuit lambda is likely to be because I left one unplugged after testing stuff, no concern there

When are you free for me to come and play in daylight? :y
i thought that  ;D

It was a frigging long day :y

Are you about either tomorrow or Monday for more playtime? :y
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Steve B

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Re: Engine Loom
« Reply #244 on: 19 March 2015, 23:30:53 »

The open circuit lambda is likely to be because I left one unplugged after testing stuff, no concern there

When are you free for me to come and play in daylight? :y
i thought that  ;D

It was a frigging long day :y

Are you about either tomorrow or Monday for more playtime? :y
Why didnt you say  ;D ;D ;D ;D ;D

Its not ignition. Its not Fuel..  Its a vac problem i think.... Thats all it can be... :-\
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05omegav6

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Re: Engine Loom
« Reply #245 on: 19 March 2015, 23:35:44 »

Hope so, but then again, it was just a misfire... ::)
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Kevin Wood

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Re: Engine Loom
« Reply #246 on: 19 March 2015, 23:50:03 »

The brake servo vacuum pipe does come from bank 1/3/5. Think about how the intake manifold ports cross over. ;)

Would be worth blanking it off just in case..

Live data shows quite a high MAF reading, even given the cold engine. I suppose that might not be surprising if it's trying to sustain an idle on 3 cylinders. Look what happens to Bank 2 ST fuel trim before it gives up and opens the loop, too. :-\

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Steve B

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Re: Engine Loom
« Reply #247 on: 20 March 2015, 00:05:23 »

The brake servo vacuum pipe does come from bank 1/3/5. Think about how the intake manifold ports cross over. ;)

Would be worth blanking it off just in cas
e..

Live data shows quite a high MAF reading, even given the cold engine. I suppose that might not be surprising if it's trying to sustain an idle on 3 cylinders. Look what happens to Bank 2 ST fuel trim before it gives up and opens the loop, too. :-\
Thats the area im thinking too..... Tomo Gonna blank the servo bung...(but with that you move over to faulty servo thoughts) And have a good check of the vac pipes with a suckarometer For a split.
Have a spare MAF but once james unplugged the one fitted it never made much change it just went to the ECU default.
PS: thanks for your input  :y
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JamesV6CDX

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Re: Engine Loom
« Reply #248 on: 20 March 2015, 00:06:03 »

The brake servo vacuum pipe does come from bank 1/3/5. Think about how the intake manifold ports cross over. ;)

Would be worth blanking it off just in case..

Live data shows quite a high MAF reading, even given the cold engine. I suppose that might not be surprising if it's trying to sustain an idle on 3 cylinders. Look what happens to Bank 2 ST fuel trim before it gives up and opens the loop, too. :-\

Yes indeed it shoots upwards!

This would tie in with the theory of it running rich, and the other bank lean, no?

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JamesV6CDX

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Re: Engine Loom
« Reply #249 on: 20 March 2015, 00:07:22 »

The brake servo vacuum pipe does come from bank 1/3/5. Think about how the intake manifold ports cross over. ;)

Would be worth blanking it off just in cas
e..

Live data shows quite a high MAF reading, even given the cold engine. I suppose that might not be surprising if it's trying to sustain an idle on 3 cylinders. Look what happens to Bank 2 ST fuel trim before it gives up and opens the loop, too. :-\
Thats the area im thinking too..... Tomo Gonna blank the servo bung...(but with that you move over to faulty servo thoughts) And have a good check of the vac pipes with a suckarometer For a split.
Have a spare MAF but once james unplugged the one fitted it never made much change it just went to the ECU default.
PS: thanks for your input  :y

Do you want to leave it until I get there? We can look together in daylight with clear heads :y
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JamesV6CDX

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Re: Engine Loom
« Reply #250 on: 20 March 2015, 00:08:06 »

I can head up late morning ish :y
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Steve B

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Re: Engine Loom
« Reply #251 on: 20 March 2015, 00:29:16 »

ok james   and yes MAF reading are a little up from before  :y

Top is before we played around.... Bottom is now . :y

« Last Edit: 20 March 2015, 00:31:13 by BIGtime »
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Kevin Wood

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Re: Engine Loom
« Reply #252 on: 20 March 2015, 09:18:19 »

14Kg/h is right on the money for a warm engine. It will be higher when in cold start, of course.
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Steve B

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Re: Engine Loom
« Reply #253 on: 20 March 2015, 09:25:52 »

14Kg/h is right on the money for a warm engine. It will be higher when in cold start, of course.
And it can be seen from the bottom pic that our MAF reading is too high at the Moment  :-\
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Kevin Wood

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Re: Engine Loom
« Reply #254 on: 20 March 2015, 11:01:53 »

14Kg/h is right on the money for a warm engine. It will be higher when in cold start, of course.
And it can be seen from the bottom pic that our MAF reading is too high at the Moment  :-\

So what changed between the two readings?

If there is a serious misfire, I'd expect it to be a little high, as said.
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