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Screwey Engine |
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Losing quickly
Joined: Apr 26 2005 Posts: 5693 Location: WI |
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Fri Aug 26, 2005 5:42 pm
My dad has a 99 miata, and on the way home today his engine randomly cuts out when the gas pedal is pressed. The rpms cut down to about 500, then kick back up to normal. Im thinking maybe fuel pump, filter and maybe sparkplug wires. Anyone know what this problem is? (its a 5 speed manual)
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stasis-
Joined: Jun 05 2004 Posts: 4405 Location: Texas!  1986 Pontiac Fiero Last updated: 06/10/06 1998 Chevrolet Camaro Last updated: 08/25/06 2003 Mitsubishi Eclipse Last updated: 12/12/06 |
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Fri Aug 26, 2005 5:51 pm
check your TPS
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Losing quickly
Joined: Apr 26 2005 Posts: 5693 Location: WI |
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Fri Aug 26, 2005 5:51 pm
TPS stands for???
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stasis-
Joined: Jun 05 2004 Posts: 4405 Location: Texas! 1986 Pontiac Fiero Last updated: 06/10/06 1998 Chevrolet Camaro Last updated: 08/25/06 2003 Mitsubishi Eclipse Last updated: 12/12/06 |
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Fri Aug 26, 2005 6:12 pm
throttle position sensor..i would check the other things out as well though.
mine did that and it was the TPS and Manifold Air Pressure Sensor |
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Silentdawn
Joined: Apr 12 2005 Posts: 1481 Location: Hockessin, Delaware 1996 Chevrolet Blazer Last updated: 11/05/05 2001 Hyundai Tiburon Last updated: 10/31/05 2003 Subaru Impreza WRX Last updated: 01/16/07 |
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Fri Aug 26, 2005 6:14 pm
TPS report...duh? |
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Losing quickly
Joined: Apr 26 2005 Posts: 5693 Location: WI |
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Fri Aug 26, 2005 6:16 pm
alrighty, thanks
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jethawk
Joined: Jul 07 2004 Posts: 1242 Location: Windsor, Ontario, Canada 1993 Honda Civic Last updated: 07/18/05 1991 Pontiac Firebird Last updated: 01/25/06 |
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Fri Aug 26, 2005 8:59 pm
that happend to be when my distributor went out on my civic... except i didnt quite make it home...and all i had left was 3 km from a 400 km road trip!!!
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GlowinPontiac
Joined: Mar 04 2004 Posts: 5960 Location: Central CT 1995 Pontiac Grand Am Last updated: 01/14/07 |
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Fri Aug 26, 2005 9:08 pm
sounds like a fuel/air problem. check the fuel pump and filter and the air filter.
Also check the plugs and sensors. |
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jol102001
Joined: Feb 12 2004 Posts: 5803 Location: Lake Charles, LA -- USA 2001 Ford Explorer Sport Last updated: 07/09/09 |
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Fri Aug 26, 2005 11:52 pm
don't the carberators mix the air and fuel... so couldn't it be that too?
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Losing quickly
Joined: Apr 26 2005 Posts: 5693 Location: WI |
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Sat Aug 27, 2005 4:39 am
......fuel injected
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jol102001
Joined: Feb 12 2004 Posts: 5803 Location: Lake Charles, LA -- USA 2001 Ford Explorer Sport Last updated: 07/09/09 |
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Sat Aug 27, 2005 1:23 pm
Me + stupid = pwned
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Losing quickly
Joined: Apr 26 2005 Posts: 5693 Location: WI |
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Sat Aug 27, 2005 2:03 pm
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ship
Joined: Aug 27 2005 Posts: 24 Location: orlando, florida 1985 Mercedes-Benz 190-Class Last updated: 02/18/06 |
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Sat Aug 27, 2005 11:54 pm
do you have a multimeter and some pins? start measuring your voltages across you TPS proper range is .4-4.7 ISH,,,, but if there is a bad "spot" then all goes to hell, come to think of it, an old school analog meter would be best for that particular test, or of course an oscilliscope..
..... and definitely make sure your maintenance up to date! always a good idea. |
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Losing quickly
Joined: Apr 26 2005 Posts: 5693 Location: WI |
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Wed Aug 31, 2005 12:49 pm
...its the crankshaft sensor, a wire got caught up or something...
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stasis-
Joined: Jun 05 2004 Posts: 4405 Location: Texas! 1986 Pontiac Fiero Last updated: 06/10/06 1998 Chevrolet Camaro Last updated: 08/25/06 2003 Mitsubishi Eclipse Last updated: 12/12/06 |
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Wed Aug 31, 2005 4:42 pm
you can replace the sensors yourself..its plug and play while the engine is cold. I learned how to do it and saves alot of money
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GlowinPontiac
Joined: Mar 04 2004 Posts: 5960 Location: Central CT 1995 Pontiac Grand Am Last updated: 01/14/07 |
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Wed Aug 31, 2005 6:36 pm
crank sensors arent always easy some require pulling the harmonic balancer on the crankshaft pulley
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stasis-
Joined: Jun 05 2004 Posts: 4405 Location: Texas! 1986 Pontiac Fiero Last updated: 06/10/06 1998 Chevrolet Camaro Last updated: 08/25/06 2003 Mitsubishi Eclipse Last updated: 12/12/06 |
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Wed Aug 31, 2005 6:57 pm
my bad then..most of the sensors are easy to get to
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GlowinPontiac
Joined: Mar 04 2004 Posts: 5960 Location: Central CT 1995 Pontiac Grand Am Last updated: 01/14/07 |
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Wed Aug 31, 2005 8:14 pm
idk about miatas but on a oldsmobile delta 88 with a 3.8L its a royal ***** to change out.
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Losing quickly
Joined: Apr 26 2005 Posts: 5693 Location: WI |
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Thu Sep 01, 2005 4:31 pm
I think its a pain to get to on a miata, my dad is having someone do it for him.
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Obsession88
Joined: Aug 30 2005 Posts: 62 Location: Detroit Lakes, Minnesota 1988 GMC Sierra Last updated: 09/09/05 |
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Fri Sep 02, 2005 4:44 pm
I would think that getting to anything on a Miata would be a pain.
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