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Spark plugs change

Vehicle Information: Year: 1991; Engine (Size, Modifications): 3.3; Total Mileage: 98K;

Is there an easy way to change the spark plug located under the power steering pump on a 1991 965? Regards

1986 930 buzzing noise when car is started location by transmission

Vehicle Information: Year: 1986; Engine (Size, Modifications): 3.0 no mod; Total Mileage: 35000;

recently when driving car, engine started to miss,then a buzzing noise in back seat, aroundtransmission area. now, battery is drainingwhen sitting. when car is started, still buzzingnoise, engine is missing again. any suggrstions.thanks andy

Exhaust/ECU Upgrade 997 Turbo

Vehicle Information: Year: 2008; Engine (Size, Modifications): 3.6 TT Stock ; Total Mileage: 900;

Can you please explain the connection between the exhaust and ECU parameters? That is, I'm thinking about upgrading the exhaust with hi-flow cats realizing that a significant reduction in back pressure will result and, hopefully, increase performance. I'm wondering if the stock ECU parameters need to be modified to "match" the more free flowing exhaust system? Or is there no connection between back pressure and ECU mapping? Thanks,Dave

performance air filter versus cold air intake system

Vehicle Information: Year: 2003; Engine (Size, Modifications): 3.6 twin turbo, milltek exhaust; Total Mileage: 20000;

I am considering a GIAC ECU upgrade. I am interested in the difference between installinga performance air filter such as BMC or AFE. Will there be a performance difference from installing a cold air intake such as from EVOMS? I prefer to preserve the oem air box.Collin

found car and start up

Vehicle Information: Year: 1979; Engine (Size, Modifications): 930; Total Mileage: 38;

i have found a 930 / 911 sc 930 has 38 miles911 has 481 miles both in like new shapebut do not know who to listen to about how to move forward with them for start up need some advise thank you in advanceed bState: fl

1991 965 Rough Starting idle

Vehicle Information: Year: 1991; Engine (Size, Modifications): 965 Turbo; Total Mileage: 55,000;

Readiness Monitors Won't Reset

Vehicle Information: Year: 1997; Engine (Size, Modifications): 3.6 TT no mods; Total Mileage: 41000;

After a tranny rebuild by my dealer (broken shifter fork), I got a CE light, with code 1140. Dealer adjusted throttle cable and reset codes, but six weeks and 350 miles later, (all local driving) with many heat/cool downs my readiness monitors haven't reset.Shouldn't the monitors have reset by now? What needs to be done? My plates have expired and I cannot get it smogged until the monitors can be read.

2001 Turbo - Coolant Expansion Tank

Vehicle Information: Year: 2001; Engine (Size, Modifications): 3.6 tt; Total Mileage: 16300;

The coolant expansion tank is turning yellow. Is that an indication that the plastic is breaking down and be replaced as a preventative measure? If so, it looks like the engine needs to be dropped.

1986 930 - ethanol

Vehicle Information: Year: 1986; Engine (Size, Modifications): headers exhaust new turbo; Total Mileage: 15,000;

what can be done to prevent the harmful effects of ethanol in the fuel

1991 C2 Turbo, .9 bar, engine drops off (hesitates) several times from 5000 rpm to Redline.

Vehicle Information: Year: 1991; Engine (Size, Modifications): 3.3,Tial wastegate .9 bar, K&N filter, Bypass pipe; Total Mileage: 65,000;

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