help please
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From: ashford kent
help please
I have changed the block in my classic it' starts up ok with a little throttle and ticks over little bit rough I changed the plugs to ngk pfr7b made no difference haven't driven it yet but when I rev it to 4000rpm the check engine light starts flashing at me now am a little worried
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From: ashford kent
Hi alcazar no I didn't I contacted a reputable tuner in the subaru industry and he advised me that 1.6mm headgasket would be fine
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Just having a quick look at apexi on an Impreza.
The mapper usually sets the CEL to come on it its detting,so sounds like you have a problem,running very lean or timing well out.
Have you double checked timing marks all line up?
The mapper usually sets the CEL to come on it its detting,so sounds like you have a problem,running very lean or timing well out.
Have you double checked timing marks all line up?
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From: ashford kent
No I don't have the hand controller. I have checked the timing over and over again it's spot on and every tooth from 1 Mark to the next is absolutely spot on
The CEL can also mean the injectors are maxing out,but as you don't have the hand commander then you can't check the duty.
Do you have an AFR gauge or knock detector? or even some dettcans so you can see if it is detting?
Do you have an AFR gauge or knock detector? or even some dettcans so you can see if it is detting?
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From: ashford kent
There 440 injectors and they were fine before I changed the block. No I don't have afr or det cans
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It's not a solid cel only flashing when you rev beyond 4000rpm by this time I backed of after confirming it was at 4000rpm and beyond
Sounds like it could be detting then.
If you don't have a cable and software or the commander then you can't really see what's going on,best getting a mapper to take a look I would say.
If you don't have a cable and software or the commander then you can't really see what's going on,best getting a mapper to take a look I would say.
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From: ashford kent
A mapper will be able to tell you if its detting,a good mapper should be able to tell you why it's detting.
DIY detcans are easy and cheap to make,some ear defenders,some lengths of rubber pipe/tubeing and a length of copper pipe.
What block did you fit? Fresh rebuild? What heads?
DIY detcans are easy and cheap to make,some ear defenders,some lengths of rubber pipe/tubeing and a length of copper pipe.
What block did you fit? Fresh rebuild? What heads?
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From: ashford kent
A mapper will be able to tell you if its detting,a good mapper should be able to tell you why it's detting.
DIY detcans are easy and cheap to make,some ear defenders,some lengths of rubber pipe/tubeing and a length of copper pipe.
What block did you fit? Fresh rebuild? What heads?
DIY detcans are easy and cheap to make,some ear defenders,some lengths of rubber pipe/tubeing and a length of copper pipe.
What block did you fit? Fresh rebuild? What heads?
Detcans when built,you fix the copper end on the block close to the knock sensor,put the ear defenders on and listen for det(engine knock/pinking)
Sounds a little like frying bacon noise.
I take it your car is a version 5 classic then?
Sounds a little like frying bacon noise.
I take it your car is a version 5 classic then?
Last edited by ossett2k2; Mar 5, 2016 at 07:52 PM.
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From: ashford kent
No it's a v4 classic mate and If I were to make my own detcans still no good to me as like you said a good good mapper will tell me the problem to rectify I'm no mapper so it's like playing darts in the dark
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From: ashford kent
I've been reading up on heads as I'm having problems with mine atm.
You're best off triple checking this but,I came across some info on the thread I've linked.
V5 heads are phase 2 so would need a 0.6mm head gasket not 1.2mm when fitting to a v1 block.
Like I say,I'm no engine builder so might be way off the mark so best checking the info is correct.
https://www.scoobynet.com/general-te...is-before.html
You're best off triple checking this but,I came across some info on the thread I've linked.
V5 heads are phase 2 so would need a 0.6mm head gasket not 1.2mm when fitting to a v1 block.
Like I say,I'm no engine builder so might be way off the mark so best checking the info is correct.
https://www.scoobynet.com/general-te...is-before.html
Ok I've just re read that and it does say 1.6mm so looks like you're ok,sorry about that mate.
Also yes you are right,the detcans will only tell you that you have knock and not where the fault is.
Also yes you are right,the detcans will only tell you that you have knock and not where the fault is.
Last edited by ossett2k2; Mar 5, 2016 at 08:25 PM.
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