Leaking wastegate cover=Hesitation?
#1
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Leaking wastegate cover=Hesitation?
Im workin on my buddies 88 T2 & I cant seem to find a hesitaion prob. Heres a list of info.
Rebuilt 2k miles
down pipe & test pipe
NO Vaccum or Boost leaks.
Replaced ALL Manifold gaskets. Only exhaust leak is at wastegate cover.
New TPS! voltage is correct.
Timing is Correct.
runs VERY well & is very fast untill hesitation at around 5k under HEAVY load!!
If the load is small then there is no hesitation.
All grounds are hooked up & have good continuity.
Injectors were cleaned & flow tested by rc engineering during rebuild.
Posibilities..... I still need to check Fuel pressure. Possible fuel pump.
Air flow meter?
OR a Leak in the wastegate cover?
It is only boosting 9 lbs with a boost controller.
Can anybody help me?
Rebuilt 2k miles
down pipe & test pipe
NO Vaccum or Boost leaks.
Replaced ALL Manifold gaskets. Only exhaust leak is at wastegate cover.
New TPS! voltage is correct.
Timing is Correct.
runs VERY well & is very fast untill hesitation at around 5k under HEAVY load!!
If the load is small then there is no hesitation.
All grounds are hooked up & have good continuity.
Injectors were cleaned & flow tested by rc engineering during rebuild.
Posibilities..... I still need to check Fuel pressure. Possible fuel pump.
Air flow meter?
OR a Leak in the wastegate cover?
It is only boosting 9 lbs with a boost controller.
Can anybody help me?
#5
I'm a boost creep...
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A slighty leaky wastegate will slow boost responce, and a badly leaking one may reduce boost, but it can't cause hesitation. Hesitations are caused by an interruption to fuel delivery and/or spark.
When does the hesitation occur? Only under load? Only at a certain rpm?
When does the hesitation occur? Only under load? Only at a certain rpm?
#6
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Yes. Only Heavy load & not untill right after 5K. I need to check the fuel filter. I have another one around here thats only got like 2k miles on it. I'll try that & I have a walbro too that's already with the sending unit. I might try that too.
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