weird power loss problem in the G

Started by metz, August 06, 2013, 03:47:10 PM

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metz

hey guys, had a bit of a weird problem today while dropping my daughter off home. she lives on a hill and i set off ok no problems. Got to the end of the road and i turn left onto a rather steep hill. pull out to turn onto the hill and lose all power. car restarts on the turn try again and the same happens. in the end i turned right and went down the hill. car is running fine otherwise and still making 13psi (stock charger 65mm pulley)

Any ideas chaps as im a bit bewildered.

Yoof


scotsjohn

1st move to Holland? 2nd I'd be thinking of fuel supply/ air locking, but the only place I can think of that might be possible is in the accumulator. Maybe worth bleeding the fuel line.

metz

it only did it on that steep hill. i tried to replicate it on the way home on similar inclines but it was fine.
the car will sit and idle fine and rev just fine its only when u tried to set off the rev's just dropped off and the car stalled.

Yoof

How steep is it?

If you're going left uphill, all fuel would surge towards the pickup.. although depends on the camber f the turn I suppose.

How much fuel you got in the tank? Also did the pump get any louder before it cut? The accumulator is small, but will hold more than enough for some idle and then pullaway in such situations.

Just go right, and downhill from now on, should sort it. haha

metz

its very steep. never had the problem before today. just thought it may be a sign of something about to go so was gunna swap it out

metz

done it again today, anytime i turn left on an incline from a standstill. any ideas guys?

Etches

Sounds fuel related, you looked at the fuel filter and lines / fuel pressure?

metz


PeteG40

you sure its not hall sender? heavy turning breaks the circuit?

metz

its only uphill left turns. boyh fuel pumps are working and no fuel leaks. how would i test hall sender pete?

PeteG40


metz

Why would it be the hall sender though? slight incline with wheels locked left and it dies when u set off. wheels locked right and its fine.

PeteG40

Just an idea. . Hall sender is only 3 wires... designed to break in a collision. Over time tge go weak... which gives are  car which either runs or doesnt.  If not fuel related I was suggesting a huge left hander forces could temporarily  mean the wires are broken.. car stops.


Only way to test is borrow a dizzy... put it on and have a go

metz

I think i have found the problem!

got the other half to turn the steeringwheel to the left while i looked at the loom in the bay for any stretched wires when all of a sudden a mass of sparks from behind the inlet manifold. the main earth wire from battery to starter motor had rubbed on the steering arm erm knuckle? where the arms bolt into the rack. so gunna take one off the other coupe. very lucky find though. the ecu could have quite easily burned out i guess.