04-27-2011, 01:16 AM
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Stock
Join Date: Apr 2011
Location: syracuse university
Posts: 1
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boost causing bog
i bought this car with it having an issue. when the boost builds up it causes the motor to bog out. i have checked all the vacuse lines and the CEL ligh was on so i did the new TPS and both knock sensors are gettin switched very soon. now back to the engine. it runs great when the boost is not built up but ass soon as it does it just bogs right the hell out. where should i go now? i already went threw the vacume lines and replaced them all. im new to turbos and i need guidence.
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04-27-2011, 06:35 PM
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walbro fp
Join Date: Dec 2010
Location: spokane
Posts: 479
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boost leak somewhere? maybe cre can shed some light. have you searched yet?
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87 toyota 4x4 single cab short box pickup, 7MGZE. |
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04-27-2011, 08:19 PM
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Supra Forum Moderator
Join Date: Nov 2009
Location: Green-Ohio
Posts: 1,297
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Quote:
damn that shit pisses me off. Hey how about we just rename the forum to CRE please answer my questions.. obviously no one else here is able to.. could be acouple things. you said you were or werent throwing any codes? give it a check. make sure all your spark plug wires are secured. (snug) and I would check you're fuel pressure. if your checking for boost leaks the most common areas are the Charge pipe right off the bottom of the turbo and the couplers at the 3000 pipe.. You said you just bought this car.. Did the previous owner do anything to the waste-gate to throw more then stock boost? allot of boost and not enough fuel will bog your engine down, running lean does the same.
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 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : Last edited by Green7mgte; 04-27-2011 at 08:58 PM. |
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05-01-2011, 09:54 PM
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Stock
Join Date: May 2011
Location: Hamilton, ON
Posts: 20
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Quote:
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05-01-2011, 10:54 PM
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#5 |
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walbro fp
Join Date: Dec 2010
Location: spokane
Posts: 479
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sounds like either a boost leak or over/under fueling. most likely under fueling unless your FPR is boned. then youd basically be shoving fuel past the injector pintle.
another possibility is bad KVAFM. check up on the TSRM to see how to test it, youll need a multimeter. ohming the injectors wouldnt be a bad idea either while your checking. just another quick thought, check to see if your wastegate is working properly good luck!
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87 toyota 4x4 single cab short box pickup, 7MGZE. |
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05-02-2011, 12:26 AM
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Stock
Join Date: May 2011
Location: Hamilton, ON
Posts: 20
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i just pulled a code 52 so i am guessing that might be my problem?
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05-02-2011, 01:06 AM
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Supra Forum Moderator
Join Date: Nov 2009
Location: Green-Ohio
Posts: 1,297
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Quote:
http://www.duanesmith.net/87tknknew.html found that, seemed helpful..
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92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : |
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