just about had enough with my rx :(

Started by aposegil, July 22, 2006, 07:34:12 PM

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aposegil

Hello all

I just did a swope of my own corrado (r32 enine in it lol but not finished) for my mates RX7 FD3S Efini type R ive been told but def a Efini

He hasnt used it in the last few months

so when he droped it off to me on a trailer

started up great went to 2000rpm
then slowly started to lower itself, but it only lowered to 1500. He told me take it for a spin as its been sitting and that clear it up and then go back to normal as with him used to idle about 800-900 rpm

Been using the car and the idle been getting worse i.e going up form 1500 rpm to 2000rpm in traffic and one fo the probs was the inlet to servo pipe as it was really cracked

Changed that over and now the car drops idle to about 1450 and only way to lower is using clutch (i.e foot on the brake car in gear and use clutch to lower it)

I def can tell its not a vacum leak as there is a solid idle and pulls fine and no loss of boost

and u can tell its something electrical that controling it/keeping the idle high

so does anyone have any clue what it could be or know of how i can diagnose the car i.e if u buy a tool that tells u etc?

thank you in advance


Gerry M

have you adjusted the idle stop on the throttle ?
The tartiest rx in scotland

Gerry M

have you adjusted the idle stop on the throttle ?
The tartiest rx in scotland

grinder

isnt there a way to check errors like on the FC ??

you can connect 2 LED\'s to it and it will show you the error code - the FD must have something similar

if you get no joy - then speak to clive at shyauto - he should beable to offer advice for free :D

Sty


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grinder

isnt there a way to check errors like on the FC ??

you can connect 2 LED\'s to it and it will show you the error code - the FD must have something similar

if you get no joy - then speak to clive at shyauto - he should beable to offer advice for free :D

Sty


1990 Black Turbo II ( Updated 24th October 2006 ) : Click Here !!
1991 Turbo II Cab ( Updated 21th May 2009 ) : Click Here !!
Piccies >>> July 2004 / August 2005
My Feedback Thread: Click Here !!
Official Mazda Rotary club Tight A$$ :King (So tight only dogs hear him fart)
MRC Bargain Hunter 2005/6/7/8/9/10/11/12/13/14 :god
Inventor of the 96p car cover:D
**Special award for services to tightness**
Lifetime achievement award for services to tightness
The tightest man on earth
:Giggle

aposegil

what is up with this forum tonight?

everything getting duplicated lol

also when out for a drive with a mate

and starting it with clutch down makes the revs stay low which i read on here means something?

also got to say this now Clive is one top guy he the one that supplied the alu rad to my mate (previous owner) and this week sorted me out with my water pipe problem

took the time to listen and gave me a few things to try still got to get boost gauge on there

I strongly recomend Clive at shy autos putty he so far away :(

Also going to do the TPS check make sure thats reading fine

aposegil

Gerry yep I have

what its doing ti goes like this

2000 - 1800 -1600 - 1500/1400 - 1200 then back upto 1500/1400

but found when u start it clutch down as recomend as a test somehwere it stays about 1000 for a while then when u depress either goes back up or stays there

aposegil

Gerry yep I have

what its doing ti goes like this

2000 - 1800 -1600 - 1500/1400 - 1200 then back upto 1500/1400

but found when u start it clutch down as recomend as a test somehwere it stays about 1000 for a while then when u depress either goes back up or stays there

Grizzly

#9
First is the car Stock?

Does it have a Power Fc fitted?

Has it had any work done Recently?

Have you had it Compression tested?

I never like it when the idle plays up or has been turned up. This is a sign it won\'t idle properly at the stock level, this could be a number of things (bad air leak,Low comp,faulty Sencer etc etc) but it would worrie me thet is been done for a reason if its solid (does\'nt hunt)

iaint

One thought - it may be idleing lower than you think.  My rev counter often reads 5-600 rpm more than it\'s actually doing - only verifiable by the Apexi commander unit.  It\'s part fo the common problems with ageing parts on these cars.

your 1500 rpm could easily be 900 in reality, only way to tell easily would be to get hold of an apexi ecu and commander for a while to see what\'s hapening although there\'s probably a clever way to tell from a pin out on the diagnostic connector!

"The way to do is to be." - Lao Tzu

aposegil

ok

Stock engine stock ECU

K&N airfilters, De-cat and exhaust system,

Compression done week ago 7 bar all the way round on both front and rear

Idle sits about 20

TPS is perfect

Nothign happens if u unplug idle valve either during running or start up even thou the engins revs are chaning by itself on start up

Its def something to do with heat

as when i went out with it on saturday night it was nice and cool it would sit about 1000-1200 rpm but took it out mid day sunday and boiling couldnt get it under 1400 rpm :(

starting it with clutch in did make it idle lower but once hot again went back up

so that yyou can understand it does this

start up 3000rpm -> 2000 -> 1800 -> 1600/1500 -> 1400 -> 1200 -> at this point depending if its cool or not outside it goes back up to 1500/1400 if its hot or goes to 1000 if its cool and if left siiting for long time runnign starts to go back up

hope that helps

aposegil

nope sadly def idling high u can hear it and its poping through the exhaust

when its about 1000-1200 rpm idles nicely great burdle but once it goes higher than that u smeel fuel and get popiing out of the exhaust

iaint

Air con on will raise idle a bit (2-300 rpm).  Sounds like somethng else isn\'t quite happy though.  Fuel smell out the back isn\'t uncommon though but it almost sounds as though the cold start function isn\'t disengaging or is cutting back in.  Maybe a dodgy therm/temp sensor?

"The way to do is to be." - Lao Tzu

aposegil

At the mo if i hit the aircon button it actually brings the idle down which is weird if its meant to go up

but as it need gassing im not using it if not i would have it on all the time at the mo lol

its def sound like to me the warm up thing RX\'s got as it goes all well and dandy but then goes back up

where are the sensors etc i can check thats controls the warm up?