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Old 10-11-2004, 05:23 PM   #1
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Default No boost, have no clue

Alright i just got my car back from fixing the head gaskets (completely reworked heads too) and i have no boost, i have a code 41: Cam sensor circuit loss of signal and a code 56: Boost control solenoid. Now i just had the cam sensor replaced along with the interupter magnet. And i have 3 boost control solenoids here, one sorta new, one about 4 months old and a 5 year old one none of them make the code go away. Now when i do the boost bypass i get my boost back but its shaky and i dont like it. Im pretty sure the BCA is working because when i turn it on it sucks it off the screw and when i play with the throttle it bounces it. So anyone have any ideas?
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Old 10-11-2004, 06:04 PM   #2
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Check for a vacum leak under the nose of the sc (common area). Also when you rev the engine you should be able to see the bcs move, do you?
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Old 10-11-2004, 07:54 PM   #3
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what exactly do you mean when you say your getting no boost? does the boost guage go to 0 and stop? cause when my boost control sylenoid (bcs) went bad i could only get 2psi, once i did the boost bypass i got all my boost back like you did, im thinkin you got a bad bcs and maybe the ones you have are bad too, i dunno, or maybe you just have a vaccum leak like pdad said...
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Old 10-11-2004, 07:55 PM   #4
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Im not exactly sure, but theres a new development, i was driving down the highway and when i went to accelerate the car just died, very strange, then it wouldnt turn over so i had my mom come with some jumps and then it would turn over but it wouldnt fire, well my dad when he got home we towed it to my house and then we changed my ignition control module to see if that worked and it didnt well then we checked to see if i was getting any spark and there is no spark now.....? Im at a loss so i took it to the shop and im going to call tomorrow
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Old 10-11-2004, 08:36 PM   #5
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Crank sensor. Get that fixed (that'* a guess on my part), and we'll diagnose that boost with you. Can't have no SSEi'* running around with no boost. It ain't proper.
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Old 10-11-2004, 08:37 PM   #6
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Sorry to hear about the troubles.
Your stall while accelerating sounds like a bad vacum leak.
Did you crank the car over untill the battery went dead and then you tried to jump it?
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