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1982 911/930 surging at high rpm

1982 911/930 Porsche surging at high rpm runs good but that and it came out of the blue no signs just did it

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Why does idle speed surge?


Thread: 6.0 V12 XJS High RPM When Warm - Jaguar Forum.co.uk

www.jaguarforum.com/showthread.php?t=54266
Mar 3, 2013 - I recently bought a 1993 6.0 V12 XJS and when it is started from cold it runs ... to 1300 RPM so it wants to surge forward when braking which is strange. ...Classics ยท XJS 3.6,4.0,5.3 & 6.0; 6.0 V12 XJS High RPM When Warm ... You might want to adjust the aux (extra) air valve to bring the idle speed down.

Sep 25, 2015 | 1989 Jaguar XJS 5.3

2 Answers

My 98 Porsche Boxster won't stay running I changed maf , fuel filter, air/oil separator ugh someone please help


DO YOU USE HIGH GRADE FUEL? IF NOT ANY OTHER FUEL CONTAINS ETHANOL WHICH ATTRACTS WATER/MOISTURE.

Jun 21, 2015 | Porsche Cars & Trucks

1 Answer

Engine surge on slow acceleration


check tranny fluid level,if good,either pump in tranny is bad or cluthces in tranny is gone bad,how many miles?

Apr 15, 2014 | 2008 Chevrolet Silverado 1500 2WD

1 Answer

RUNS ROUGH AT MID RPM


Need to be more specific here. Runs rough...like misfiring? or vibrating excessively at about 1500, and again about 3000 rpm? If it's the latter, chances are your engine's balance shaft is not timed correctly. This causes a heavy high-frequency vibration/buzz throughout the car, at the aforementioned rpm ranges. If it's more like a misfire/stumble, look into your ignition system, or possibly a sticking EGR valve. (This will cause a mild surge/bucking under light accel, peaking between 45-50mph. Good luck!

Apr 07, 2014 | 1997 Honda Accord

1 Answer

1986 porsche 911 Surging: Low rev high rev. .


Besides a leak on intake I will check the ECU just to make sure that thing is working as it was intended to, a sitting car usually have moisture build up and is not friendly with electronic components.

Nov 27, 2013 | 1986 Porsche 911

1 Answer

1984 PORSCHE 911 RUNS ROUGH AT HIGH RPM


it was related, ignition system..
you have to check ignition coil(pack).
improper distribution engine runs rough.

May 27, 2013 | Cars & Trucks

1 Answer

Misfiring on right side at low rpm.


could be a catalytic converter or o2 sensor. really would need to hook it up to a proper scan tool to view live data while running.

Mar 31, 2010 | 1999 Porsche 911 Carrera

1 Answer

1 st gear ok 2nd gear loses power rpm goes high


Check engine light on?

Is it a manual or auto? Assuming its a manual, is there an ABS light on? If so or if you hace changed the brake pads recently or even had the tires off or rotated, there could be a problem in the brake pad sensor or abs wheel speed sensor.

Check with Porsche service (your closest dealer) for recalls or TSB (Technical Service Bulletins) related to your concern and check the cayman/boxster owners clubs for similar posts and resolutions.

Hope that helps.

Sep 12, 2009 | 2000 Porsche Boxster

1 Answer

Car runs fine at idle but wants to surge


there is a fuel pump inside the tank that is bad replace it

Jan 01, 2009 | 1988 Nissan 300ZX

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