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elperuano · 06-01-2018, 10:10 PM

What's up guys,
Ran into my first problem after 2 years almost 3.
Hoping to get some ideas on where to start. Here's my build.

08 g37s coupe.
Rods and pistons
BP kit with upgraded 6766 turbo 1.43 ar housing.
Cjm 1.5 RFS system.
Ecutek

Making a 400 mile round trip car was running fine. Hitting full boost no problem. Soon as I get off highway car makes no boost. Running pig rich. Sounds like a wrx.
Where should I start? Coupler? Plugs? Turbo?
Turbo has about 15k miles on it. Got home fine just running really rich. At idle, runs fine.

Thanks for the suggestions and advice!

06-01-2018, 10:10 PM	#1 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 28	Trouble shooting boost problem What's up guys, Ran into my first problem after 2 years almost 3. Hoping to get some ideas on where to start. Here's my build. 08 g37s coupe. Rods and pistons BP kit with upgraded 6766 turbo 1.43 ar housing. Cjm 1.5 RFS system. Ecutek Making a 400 mile round trip car was running fine. Hitting full boost no problem. Soon as I get off highway car makes no boost. Running pig rich. Sounds like a wrx. Where should I start? Coupler? Plugs? Turbo? Turbo has about 15k miles on it. Got home fine just running really rich. At idle, runs fine. Thanks for the suggestions and advice!