Intermittent boost issue
#1
Intermittent boost issue
Quick specs - 89 T2, rtek 1.7, 550 primaries 750 secondaries, three inch exhaust.
About a week ago, driving on the freeway, I went to boost and couldn't get the needle past 5 psi (normally boosts around 10). Figured it was a vacuum leak, but a minute or two later it started boosting just fine. I sort of shrugged it off.
Did it again today. Couldn't get the boost over five. It "feels" like a fueling issue, as the AFR's seem to spike high a bit when this is happening.
Couldn't find any vacuum leaks. Any suggestions?
About a week ago, driving on the freeway, I went to boost and couldn't get the needle past 5 psi (normally boosts around 10). Figured it was a vacuum leak, but a minute or two later it started boosting just fine. I sort of shrugged it off.
Did it again today. Couldn't get the boost over five. It "feels" like a fueling issue, as the AFR's seem to spike high a bit when this is happening.
Couldn't find any vacuum leaks. Any suggestions?
#2
Sharp Claws
iTrader: (30)
doubt it is fuel related unless the car just falls flat on its face and sputters trying to go into boost.
sounds like a ripped hose that is bleeding off pressure intermittently, tears will generally give lower boost levels when fully warm versus a cold engine which will perform relatively normally. only other thing i can think of is a sticky wastegate door.
sounds like a ripped hose that is bleeding off pressure intermittently, tears will generally give lower boost levels when fully warm versus a cold engine which will perform relatively normally. only other thing i can think of is a sticky wastegate door.
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