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Old 04-26-2019, 08:08 AM
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Huskymaniac Huskymaniac is offline
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Join Date: Jul 2010
Location: Corning, NY
Posts: 1,872
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Re: Got the head gaskets done now the idle is bouncy

A couple of pieces of information:

The check valve (16195AA030) was still in the bag of leftover parts when I picked up the car. If that is left out, could it cause the idle issue?


Also, the short term fuel trim numbers are very high and erratic.

I have no qualms about re-soldering the MAF and trying that. Also, if he didn't replace the gaskets on the exhaust manifold to the pre-cats, could that cause this issue?
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1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads
2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil
2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil
1992 Red Ferrari 348 ts, 82,XXX, Redline everything
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