Boost issues-Stuck BOV?

ksd9000 · 06-18-2011, 05:11 AM

***UPDATE****

OK, so I got an aftermarket boost gauge and hooked it up. Did some more testing and found that the WG actuator was not moving. BTW I bought a blood pressure cuff at CVS and used the pump off it to make a SST that worked exactly like the one in the pic for the TSRM. Just tee'd off the boost gauge and was able to see the pressure at which the WGA opened...

OK so back to the testing... I applied pressure to the WGA and no movement. Some investigation showed that the new turbo came with an adjustable WGA rod. Well whoever put it togehter at the factory adjusted it to the shortest length. In essence it was like shimming the WGA so that it would never open. Some adjusting and pressure testing and the WGA moves freely and correctly.

Test drive.....she dies again around the block and neighbor has to tow me back to the house...

Feels like a fuel delivery issue now. Some more testing and find that there is so much vacuum build up in fuel tank that when I open the fuel cap, it sounds like a jet taking off...WOOOOOSSSSHHHHHHH. Ok, Start up and she runs fine now. Test drive and starving for fuel again.

Went out and bought a new fuel filter and fuel pump. Installation to ensue tomorrow...will post again with more details....

CRE, you help has been on point so far...thanks for your insight!

cre · 06-18-2011, 05:44 AM

Your love of TLAs is killing me. What do you mean when you say CVS? It's not ringing any bells for me.

Vacuum in the tank? Sounds like someone either tried to delete the evap control system (the charcoal canister is part of it) and didn't have a clue or it's plugged up... either way it can result in cavitation of the fuel pump impeller.

EDIT: ROFL!!!! Bought it AT CVS.... the store... never even seen one but heard of them in the past... I feel like a tool.

ksd9000 · 06-20-2011, 12:41 AM

TLA? Not sure what that is?

Fuel pump and filter replaced. Runs like a banshee!

Appears the evap system is deleted. No canister. How do I overcome the vacuum build up? Car didt have any of it when I got it.

cre · 06-20-2011, 01:32 AM

TLA = Three Letter Acronym.

My recommendation on the evap system would be to replace what's missing... otherwise you really are just wasting fuel (it does NOTHING to affect power output).

06-18-2011, 05:44 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Your love of TLAs is killing me. What do you mean when you say CVS? It's not ringing any bells for me. Vacuum in the tank? Sounds like someone either tried to delete the evap control system (the charcoal canister is part of it) and didn't have a clue or it's plugged up... either way it can result in cavitation of the fuel pump impeller. EDIT: ROFL!!!! Bought it AT CVS.... the store... never even seen one but heard of them in the past... I feel like a tool. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> Last edited by cre; 06-18-2011 at 07:42 AM.

06-20-2011, 01:32 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	TLA = Three Letter Acronym. My recommendation on the evap system would be to replace what's missing... otherwise you really are just wasting fuel (it does NOTHING to affect power output). __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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06-18-2011, 05:11 AM	#1
ksd9000 Stock Join Date: Apr 2011 Location: Texas Posts: 10	*UPDATE** OK, so I got an aftermarket boost gauge and hooked it up. Did some more testing and found that the WG actuator was not moving. BTW I bought a blood pressure cuff at CVS and used the pump off it to make a SST that worked exactly like the one in the pic for the TSRM. Just tee'd off the boost gauge and was able to see the pressure at which the WGA opened... OK so back to the testing... I applied pressure to the WGA and no movement. Some investigation showed that the new turbo came with an adjustable WGA rod. Well whoever put it togehter at the factory adjusted it to the shortest length. In essence it was like shimming the WGA so that it would never open. Some adjusting and pressure testing and the WGA moves freely and correctly. Test drive.....she dies again around the block and neighbor has to tow me back to the house... Feels like a fuel delivery issue now. Some more testing and find that there is so much vacuum build up in fuel tank that when I open the fuel cap, it sounds like a jet taking off...WOOOOOSSSSHHHHHHH. Ok, Start up and she runs fine now. Test drive and starving for fuel again. Went out and bought a new fuel filter and fuel pump. Installation to ensue tomorrow...will post again with more details.... CRE, you help has been on point so far...thanks for your insight!

06-20-2011, 12:41 AM	#3
ksd9000 Stock Join Date: Apr 2011 Location: Texas Posts: 10	TLA? Not sure what that is? Fuel pump and filter replaced. Runs like a banshee! Appears the evap system is deleted. No canister. How do I overcome the vacuum build up? Car didt have any of it when I got it.