Idle Speed

[tim]

PLEASE CAN ANY ONE HELP ? I HAVE JUST BOUGHT A 1992 RX7 BUT I AM HAVING PROBLEMS WITH THE IDLE REVS , IT KEEPS GOING UP AND DOWN SLIGHTLY............ALSO CAN ANYONE TELL ME WHERE I CAN GET A DETAILED ENGINE MANUAL FROM ?........................PLEASE SOMEONE HELP.

[bnaellis]

Hi Tim,
First is the car standard?? If not what mods do you have ?
Second did you buy the car like that or has it developed since ?
Does it do it for a few seconds and then settle or is this the norm?
Does it get worse when it's hot?? does it ever conk out ??
Will need more detailed info to be of any help as it could be one of many causes. Possible vacuum leak, poor compression, bad injector, fuel filter, spark plugs, ht lead, etc etc the list goes on.

rgds
Brian

[tim]

HI BRIAN, I HAVE JUST LANDED THE CAR FROM JAPAN, IT HAS BEEN LIKE THIS FROM DAY 1. IT DOES IT ALL THE TIME.IT DOESN"T GET ANY WORSE WHEN IT GETS HOT. IT DOESN"T CONK OUT, THE CATS GET VERY HOT WHEN STOOD STILL VERY QUICKLY.IT HAS HKS BITS ON IT .HAVE CLEANED THE PLUGS AND PUT THEM IN THE OVEN FOR A BIT.......AS I FLOODED IT WHEN FIRST LANDED. YOU HAVEN"T GOT ANY MANUAL PICTURES OF THE ENGINE SO I CAN CHECK THE VACUUM PIPES............................................. ........I REALLY APPRECIATE THIS MATE !

[bnaellis]

Hi Tim,
Try this link it has a picture of vacuum hose diagram, click on it and it will enlarge to a decent size.

http://www.rx7guru.com/rx7hoses.htm

What ecu do you have standard or aftermarket ??
What mileage do you have in the car ??

rgds

Brian

[Glenn Butcher]

Hi Tim/Brian,

Tim - check out www.iluvmyrx7.com also - all the Factory Workshop Manuals are available there in PDF format.

Let us know how you get on with your car.

[Fish]

Hunting idle normally relates to one of the inlet manifold gaskets blowing.

Best to get a length of hose, put one end to your ear, and use the other to listen for blowing noises around the engine.

(This is taken from Chris 'Voice of Doom' Wilson. ;)

Dan

PS. Do you know where the CAPS LOCK key is? Please stop shouting

[tim]

THANKS FOR THE ADVICE, IN THE END IT WAS A VACUUM PIPE AND A DODGY BATTERY TERMINAL. HAD TO RESET THE ECU AS WELL.

[tim]

HI BRIAN, THANKS FOR THE HELP , ITS SORTED NOW !IT WAS VACUUM PIPE AND A BAD BATTERY TERMINAL CONNECTION, WE THEN RESET THE ECU AND TOUCH WOOD IT SEEMS TO BE FINE..................

[bnaellis]

Good on you tim, a nice cheap fix.:D

rgds Brian

[Glenn Butcher]

Thanks for letting us know Tim! much appreciated.