V8i Idling Issue

I rev problem is all gone now I brought a can of Carby & Throttle Body Cleaner removed the electrics of the throttle body removed the 2 large vacum tubes placed a thick large rag under the whole throttle body then gave it a good spray all over in there and let it sit for about 10mins then gave it another good spray in there. I cleaned in there with a clean rag soaked in the cleaner. I put everything back together. It took alittle to start the engine but she kicked over was rough a little but smoothed right out and I took her for a spin.

Now she idles smooth I no longer have the revs jumping up and down after a warm start or the idle slightly going up and down at light's.

:thumbsup:

hmmm interesting, did it however want to rev before you put the cleaner before hand? mine doesnt want to rev past 1500-2500 rpm

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Originally Posted by eddie_V8i

hmmm interesting, did it however want to rev before you put the cleaner before hand? mine doesnt want to rev past 1500-2500 rpm

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If your engine doesn't want to rev or rev high enough or stall at lights etc it would be your throttle positioning sensor I had the same problem with my falcon.

where is the throttle positioning sensor? would you mind taking a photo of it, and just letting me know what the correct setting is and how to adjust it please, thanks mate

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Originally Posted by eddie_V8i

where is the throttle positioning sensor? would you mind taking a photo of it, and just letting me know what the correct setting is and how to adjust it please, thanks mate

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It's non-adjustable if it's faulty you need to get a new or used one. You will find it very easy if you look at the opening of the throttle body it will be on the outer leftside held on by 2 srews and a wiring connector.

hey there guys, i was just speaking with alto land rover on the phone again, they are fairly certain that it sounds like stickly valves.

is this easy to repair? i realise that i would have to take the heads off, and strip the valves and springs off to de coke all of the carbon off, but would that be all i need to do?

I take it it's also smoking then.

hmm nah its not actually..

*bump*

i still have the same problem gentlemen, help please, im desperate :(

spent the day working on the disco, my findings:

- the bypass air valve/stepper motor apears to be working fine and wasnt really caked up in carbon etc
- the throttle position sensor apears to be working fine too,

however it does only to be running eratic. (fud-fud-fud-fud-fud) There is a spark at every spark plug, only time it wants to rev is with an aid of carby cleaner sprayed into the maf as i start to accelerate.
I increased the timing a little and then started the car, it apeared to be running much better (still alittle eratic though), so i took it for a test drive. I didnt get it any more than 50 meters, then it started running eratic again



** Does this mean that the MAF sensor is shot? (because in theory this is telling me that the injectors arnt getting enough fuel) - right? ??

if it is the maf, how much would it cost for a second hand 5AM MAF, and would anyone here on this forum have a spare one

thanks
Eddie~!