Gas tank building pressure , no codes - Lexus IS Forum
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post #1 of 2 (permalink) Old 04-16-2017, 12:38 PM Thread Starter
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Gas tank building pressure , no codes

Hello guys im new here, I might be posting in the wrong place but here i go....
After installing a bosch450 in my tank I'm using a 6 an return hose I'm noticing my tank is building pressure it's pushing back trough the conector!, seems like it's building pressure , can someone guide me what hose shuld I check!?
I also removed a round canister that looks like a 32oz beer can from under the intake manifold, don't know if it's related or not please help

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post #2 of 2 (permalink) Old 04-18-2017, 05:59 PM
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[QUOTE=Dwayne1980;8211346]Hello guys im new here, I might be posting in the wrong place but here i go....

After installing a bosch450 in my tank I'm using a 6 an return hose I'm noticing my tank is building pressure it's pushing back trough the conector!, seems like it's building pressure , can someone guide me what hose shuld I check!?

I also removed a round canister that looks like a 32oz beer can from under the intake manifold, don't know if it's related or not please help



Your tank should be able to vent any excessive pressure through the charcoal canister. My best guess would be you closed off the vent hose to the charcoal canister by capping it or pinching it incidentally. Or your canister is plugged. Hope that helps, and good luck!


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