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Engine, Exhaust & Gearbox ECU chips, decats, cam kits,

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Old 27-01-2018, 10:27 AM   #1
jhcomp
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bangs from intake manifold 106 xsi

Hi all,iím Diego from Spain and i have some problems with my 106 xsi non cat

when the car started, they produce explosions since the admission, I have already looked at a lot of things and I do not give with the problem

I have reviewed the following:
-fuel pressure in fuel rail:3,5 bar
-compression:Cyl1=12
Cyl2=12
Cyl3=14
Cyl4=14

-spark plugs news
-spark plugs wires OK
-coil OK
-timing belt is OK
-knock sensor OK
-injectors are OK
-injeccion relay is OK
-ecu,i have two and they do the same

I donít what is the problem and iím lost

Anyone can help me??

Thanks a lot
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Old 27-01-2018, 10:33 AM   #2
MHR1294
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Quote:
Originally Posted by jhcomp View Post
Hi all,iím Diego from Spain and i have some problems with my 106 xsi non cat

when the car started, they produce explosions since the admission, I have already looked at a lot of things and I do not give with the problem

I have reviewed the following:
-fuel pressure in fuel rail:3,5 bar
-compression:Cyl1=12
Cyl2=12
Cyl3=14
Cyl4=14

-spark plugs news
-spark plugs wires OK
-coil OK
-timing belt is OK
-knock sensor OK
-injectors are OK
-injeccion relay is OK
-ecu,i have two and they do the same

I donít what is the problem and iím lost

Anyone can help me??

Thanks a lot
Hello

Check the camshaft timing. When you pin the flywheel at TDC, the hole for the camshaft should line up perfectly.

Explosions in intake can be due to the camshaft timing. Or it can be the engine running too lean.

If you've tried 2 ECU then that makes me think it could be the camshaft timing.
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Old 27-01-2018, 11:02 AM   #3
jhcomp
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Quote:
Originally Posted by MHR1294 View Post
Hello

Check the camshaft timing. When you pin the flywheel at TDC, the hole for the camshaft should line up perfectly.

Explosions in intake can be due to the camshaft timing. Or it can be the engine running too lean.

If you've tried 2 ECU then that makes me think it could be the camshaft timing.
First,thanks a lot for your rapid answer

I check camshaft timing some times and i think thatís ok,with cylinder 1 and 4 in tdc and the hole of camsahft is perfect

I have some dude where should be the flywheel
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Old 28-01-2018, 03:44 PM   #4
MHR1294
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Is the engine good when it is warm?

Did you check the fuel pressure when the engine was running?

Perhaps smoke test the inlet to check for vacuum leaks?
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Old 28-01-2018, 06:49 PM   #5
jhcomp
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Quote:
Originally Posted by MHR1294 View Post
Is the engine good when it is warm?

Did you check the fuel pressure when the engine was running?

Perhaps smoke test the inlet to check for vacuum leaks?
The engine is not good when it is warn,fuel pressure is 3,5bar in fuel rail,i can try with smoke

Thanks
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Old 29-01-2018, 12:05 AM   #6
jhcomp
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Another thing that i can see is when the engine is in TDC (camshaft,piston 1 and flywheel) the zone of flywheel whitout thoot (flat area) stays in the area marked in red, nothing to see where the drawing says, is this correct?

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Old 29-01-2018, 04:51 PM   #7
MHR1294
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What is your source for this diagram? I don't recognise it as TU engine.
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Old 29-01-2018, 07:00 PM   #8
jhcomp
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Quote:
Originally Posted by MHR1294 View Post
What is your source for this diagram? I don't recognise it as TU engine.
Bosh motronic diagrams

This pic is of one engine of citroen AX gti in good condition,this pic is in TDC and the position of flat area is the same that my engine then i think that is correct in my engine

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Old 17-05-2018, 04:24 PM   #9
jhcomp
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Hi all,finally was the flywheel,wrong position,i’ll hope that i can help anybody
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