f@@@in fault with esco still...................now fine
#1
f@@@in fault with esco still...................now fine
yous might remember i posted up this fault my mates esco cos has got
wel its still not gone...so basically car has had this fault on and off for a while now(1=2 years)
the car when revved up to 4k it backfires like fuck,looses boost and cuts out.at 1 bar of boost
this was running stage 3+for running in new engine
tonight we put the greys in +msd closed loop chip and the boost must be set diffrent on this map as it doesnt come in as quick and now it revs to 5500 on only 10psi and does the same thing
we are at our wits ends with the thing
its been in a garage 3 times for this and still the same
all sensors,ecu changed except knock sensor and tps
there is a great spark,plenty fuel getting through,and all engine wiring inspected and part rewired
nightmare
m.rainbird,stu(msd)m.reyland,m shead.............help
wel its still not gone...so basically car has had this fault on and off for a while now(1=2 years)
the car when revved up to 4k it backfires like fuck,looses boost and cuts out.at 1 bar of boost
this was running stage 3+for running in new engine
tonight we put the greys in +msd closed loop chip and the boost must be set diffrent on this map as it doesnt come in as quick and now it revs to 5500 on only 10psi and does the same thing
we are at our wits ends with the thing
its been in a garage 3 times for this and still the same
all sensors,ecu changed except knock sensor and tps
there is a great spark,plenty fuel getting through,and all engine wiring inspected and part rewired
nightmare
m.rainbird,stu(msd)m.reyland,m shead.............help
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#8
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the symptoms you describe dont totally say exhaust to me,but judging on what has already been done its got to be worth a go before wasting more time and cash,i have seen exhausts cause this kind of fault,even intermittently,strangely
#15
Originally Posted by bud-weis
presuming that mechanically the car is sound ( which i'm sure it is ) then it definitely sounds electrical IMO...
now its got a new completly rebuilt diffrent speced engine
#16
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Originally Posted by col cos1
Originally Posted by markyd3
my 3 door had a similiar issue.
as soon as the L8 ecu was fitted it was sorted.
Could you have a faulty ECU?
as soon as the L8 ecu was fitted it was sorted.
Could you have a faulty ECU?
i take it youve changed all the spark plugs and leads etc
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ye it has had leads the lot its such a weard fault as it only happens when the car is under load then u need to turn the car of and restart it and its perfect
#20
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wiring to the map sensor
also common fault is the the multi plug still there in engine bay
also check main voltage to the ecu when the car is running and driving (do this by putting a volt meter to the correct pin-out on the ecu connector)
also common fault is the the multi plug still there in engine bay
also check main voltage to the ecu when the car is running and driving (do this by putting a volt meter to the correct pin-out on the ecu connector)
#21
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Originally Posted by TurboInsania
ye it has had leads the lot its such a weard fault as it only happens when the car is under load then u need to turn the car of and restart it and its perfect
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right ecu babyboard and chip all been changed the multiplugs av been cut out and hard wired plenty fuel and prob was there before external pump was fitted euan and i avnt got much hair left to pull out lol
#25
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Fuel pump / gauze on the pickup or the fuel pressure reg....
I have had several that seem like an electrical fault and it turned out to be either
Fuel Pump Voltage/Wiring
Fuel Pressure Reg Diaphram usually.
Pick up on the fuel pump, most have some sort of gauze/strainer on the pickup which if partially blocked can give similar probs as you describe....
If you have exhausted all the other sensor/electrical avenues....
I have had several that seem like an electrical fault and it turned out to be either
Fuel Pump Voltage/Wiring
Fuel Pressure Reg Diaphram usually.
Pick up on the fuel pump, most have some sort of gauze/strainer on the pickup which if partially blocked can give similar probs as you describe....
If you have exhausted all the other sensor/electrical avenues....
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give u an idea i got the car without an engine totally standard the car had this fault and when i picked up the car it was in the garrage for this fault and unfortunatly the engine let go when the garrage had it and since then has had a top spec rebuild external pump so on but u say the regulater that is 1 thing i aint actually looked in to maybe worth a nose
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right good news looks like it the middle wire on the throttle position switch.It has sucked up water by cappilary and its screwed the cable so the wire came out my hand when i checked it today, and when i hard wired the engine loom plugs beside the coil i noticed 1 wire was the same and its the same colour.So i might just replace that wire on its own but i dont no if it gos straight there any body shed sum light and thanks for the info today on the phone stu set dizzy up spot on
#40
neil he bought it off harvey gibbs i think,it was a standard one out a concours car £big note
it wasent as easy as it should of been i dont think due to some of the old loom being hard wired by someone else and things didint match up
but hes soldered and heat shrinked all of it etc and it seems to be fine
it wasent as easy as it should of been i dont think due to some of the old loom being hard wired by someone else and things didint match up
but hes soldered and heat shrinked all of it etc and it seems to be fine