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Is a 944 supposed to idle rough ???
I know my 924 idles rough but is my 944 supposed to ??? Its really rough, Im hoping a simple tune-up will fix the problem. Any thoughts or suggestions ?
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87 944 72 914 Sold 84 944 Sold 85.5 944 Sold 78 924 (first car) RIP |
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07-29-2004, 07:15 PM
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You know....I was gonna ask this same thing. Mine is quite rough down low, especially when cold. I have the idle set at 950/1050 (load) to even her out.
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07-29-2004, 07:33 PM
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mine idles rough at first, and then smooths out after about 2 mins, or just a couple seconds of driving. It hasn't always been like that, so i figure it has something to do with my crappy plug wires?
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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07-29-2004, 07:39 PM
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That's what I'm leaning on....bad wires. I think I'm gonna order up some 8.5mm wire and boots and put together my own wires. $150 for quality wires is BS.
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07-29-2004, 07:43 PM
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A vacuum leak is likely to make it idle rough.
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1983 red Porsche 944 |
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07-30-2004, 07:16 AM
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I've got Magnecor wires on mine. I think they were $89 or something like that. The're non-resistor supression wires. I don't know if i got any HP out of them, but it runs better after i installed them
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07-30-2004, 08:42 AM
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Motor mounts will contribute to rough idle feel as well.
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TENSION YOUR SOCKS! 88 924S Guards/ Black ~ 10 years as a Daily Driver and STILL SMILING! 87 NA Diamond Blue Metallic ~ Gone |
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07-30-2004, 08:55 AM
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hey Chris,
Like you said, I also noticed a substantial improvement of the idling (less rough) after installing new motor mounts. I don't fully understand, but think that it's related to vacuum: a stressed (because the motor is lowered with a collapsed mount) vacuum hose (e.g. the J-boot) would not properly seal to its connections. What do you think? Stan
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1983 red Porsche 944 |
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07-30-2004, 10:36 AM
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would a vaccuum leak have a rough idle that smooths out after only a few minutes?
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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07-30-2004, 01:30 PM
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Quote:
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89 944 Turbo 115k miles, Stock 96 Range Rover 4.0 SE 130k miles. 84 944 170k miles, FR Wilk Chip, Sold. "Don't listen to me, I dont know what i'm talking about" |
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07-31-2004, 03:28 PM
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engine sounds "rougher" and steering wheel vibrates more than when the car is warm
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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07-31-2004, 07:50 PM
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Every 944(Every porsche for that matter) has been like this.. it feels like more of a rumble to me. A nice rumble, though....
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08-01-2004, 02:51 AM
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Check the vacuum line attached to the brake booster... as well as the ancillary vacuum lines connected to it.
That's been known to produce these conditions as well.
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TENSION YOUR SOCKS! 88 924S Guards/ Black ~ 10 years as a Daily Driver and STILL SMILING! 87 NA Diamond Blue Metallic ~ Gone |
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08-01-2004, 05:52 AM
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1987 Porsche 944 2.5 L.
2007 Porsche Cayman S
The Viridian Falcon
SOLD! -- The Purple Pig
SOLD! -- Mighty Mouse
SOLD!! -- Alpine Wolf
1988 Porsche 924s 2.5L
