Super Turbo on ebay.
- Thread starter Ceirwan
- Start date
Hi thanks for that . I think they only set on fire cause the leads was actually lying on the heat shield . The new ones go up and clear the shield so it should be good now.
This weekend gonna take photo's of the light and engine bay. Then gonna look at the manifold etc. I will have a look at that sensor you mentioned aswell.
Q.. does anyone know the internal diameter of the small hoses looks like 4mm but im not sure thought id ask you guy's cause i don't want to cause any more problems. cheers john.
This weekend gonna take photo's of the light and engine bay. Then gonna look at the manifold etc. I will have a look at that sensor you mentioned aswell.
Q.. does anyone know the internal diameter of the small hoses looks like 4mm but im not sure thought id ask you guy's cause i don't want to cause any more problems. cheers john.
Not to want to make this worse or anything but I melted a piston due to one of my ignition leads melting against the turbo on my first ST over a prolonged period of time (I'd have never believed it either) but anyway that light is the cat light sensor showing that the exhaust gasses have been running very hot, this causes the over temp sensor to fail and the light come on, on the dash. The sensors are about £120 ish from nissan. They are so crude that I just bypass them (by joining the wires) after this happened as they serve almost no useful purpose, they are also entirely separate from the ecu.
Do you know howto bypass the sensor? I kept my eye on the engine temp when i was driving before this happened and it was fine and the car starts fine so fingers crossed no pistons melted here.
You can not drive the car at all it just won't drive will this sensor make this happen? thanks very much for your time feel like im getting somewhere now.
You can not drive the car at all it just won't drive will this sensor make this happen? thanks very much for your time feel like im getting somewhere now.
the only way i know of to bypass sensors like that is to trick the ECU into thinking its operating within range, usually a resistor of some sort will do the trick but i've no idea what value you'd need to do it
chances are its a relatively simple part/interchangable with other nissans but welcome to the mystical world of owning a march ST
chances are its a relatively simple part/interchangable with other nissans but welcome to the mystical world of owning a march ST
Baz
Ex. Club Member
I agree with Sammo. . .the light as you've been told a few times has nothing to do with the way its driving its seperate to the ecu.
Compression should be over 100psi on all cylinders,any deviation from that figure means trouble
Hi been down the garage today took off the turbo heat shield and found the nuts are all missing off the turbo manifold.
Also i noticed that this keeps blowing i put a 20amp fuse in and it blew straight away. I have circled it on the picture below. Does anyone know how at speak japanese lol?
I will perform a compression test in the week as my garage is 20 miles away from my house and i will report back the readings i find. cheers john
Also i noticed that this keeps blowing i put a 20amp fuse in and it blew straight away. I have circled it on the picture below. Does anyone know how at speak japanese lol?
I will perform a compression test in the week as my garage is 20 miles away from my house and i will report back the readings i find. cheers john
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Baz
Ex. Club Member
That the cat the nuts are missing from!
Why is the hose missing from the turbo outlet? Vacuum hoses look like 3mm.
I had a contact problem with that fuse a while ago and it caused me to have no heating and the exhaust temp light to light up!
A bit of contact cleaner sorted that out but I reckon you have a different problem.
Yeah should give an indication of the condition of the engine
Hi i noticed that the fire melted the wall of the hose so i took it off. i have purchased a hi temp boost hose to replace it.
I sorry to keep asking questions should all these red hoses be 4mm? i found the 1 with the restrictor in it.
All in all its not looking good for this st.
I sorry to keep asking questions should all these red hoses be 4mm? i found the 1 with the restrictor in it.
All in all its not looking good for this st.
Baz
Ex. Club Member
Stupid question here but have you been driving without that hose?Cause the car would'nt move imo?
LET ED SORT THIS OUT,you'll only be throwing money away otherwise
frank
Club Member
thats not too bad, you did hold the throttle open while testing ?
frank
Club Member
you,ll get a miss-reading with the throttle shut, ie remove the 4 plugs and hold the throttle open
I hate to be the sceptic (normally Im the over enthusiastic optemist)...BUT
I dont beleive that "exactly the same readings" were acheived the second time around....(cant get that thought straight in my head)....sorry
forgive me for my direct ignorance...but I suspect that the compression test was not repeated with throttle open & all plugs out....I'm gusessing that it was too much fuss to repeat the test??
Are you sure your brother repeated the tests? or did he say "'wont make any difference...just say it was the same"
sorry to be accusing, but on my car I have messed up the compression tests a few times myself and I was really upset about the though of repeating the tests...in the end I had another tennants super strength ,and DID repeat the test(s) and my results were totally different (all readings were higher...and one of my crazy cylinere results came back in range of the others)
my battery sufered from cranking but a top up charge sorted that
any chance you could do one more set of compression tests and a fresh set of results? (do the cylinders in reverse order this time to be sure there's nothing wrong with the test procedure or setup) ..its worth the effort to be sure
Baz
Ex. Club Member
Good man Ed.
@frank whats the difference in having the throttle closed or open?It would probably read higher having it open? Cylinder 4 is quite low. . .my reading are between 115-120psi all 1-2psi of each other
I got readings as high as 140psi out of an engine I recently built in the last 6 months for another st
@frank whats the difference in having the throttle closed or open?It would probably read higher having it open? Cylinder 4 is quite low. . .my reading are between 115-120psi all 1-2psi of each other
I got readings as high as 140psi out of an engine I recently built in the last 6 months for another st
frank
Club Member
i think so baz, it,s got to be able to gulp the air in, before it can compress it, eh
and the inlet valve timings will have an effect too, eh
Sorry iv'e been a bit quite last few days been busy at work. I've been to the garage all day today been getting things sorted.
The car is now DRIVING!!!! replaced loads of hoses new plugs+ dizzy cap rotor arm tightened all the exhaust up + new gaskets. cut the cat overtemp sensor and joined wires together as ED said and the lights off on the dash now.
I still have this problem with the fuses blowing in pics of the earlier post i sent does anyone know where these is connected to? or what it does this would be very helpful indeed. thanks guys john
The car is now DRIVING!!!! replaced loads of hoses new plugs+ dizzy cap rotor arm tightened all the exhaust up + new gaskets. cut the cat overtemp sensor and joined wires together as ED said and the lights off on the dash now.
I still have this problem with the fuses blowing in pics of the earlier post i sent does anyone know where these is connected to? or what it does this would be very helpful indeed. thanks guys john
