someone please help me

[jayzcycles]

i have a 97 4.0 chimeara.i have had this car for 4 years now but only done 750 miles becuase of the irratic idle .i have changed stepper motor ,plugs leads temp sender .while in the garage having mot someone reversed into it. new bonnet .had the car repainted new sp12 wheels looks great but still the idle prob.it has been looked at by many tvr people but none have cured this just charged me loads of money.got the car back yesterday runs great but as soon as it gets hot the idle prob returns.if there is anyone out there who can help please im begging.i live on canvey if anybody can help who is close by.thank you.
ps.i noticed a buzzing yesterday from the rear of the car when the revs pic up this goes,but when the idle plays up cant here no buzz.please help jay.

[theaxe]

Sounds like the coil to me.... or it could be the plug extenders.

Edited by theaxe on Thursday 16th November 10:09

[Nick P]

the buzzing is most likely the fuel pump...normal i'd think!!

[jayzcycles]

nick i get the normal buzz from the pump but this is different .its like you get a fuel return up the revs the buzz stops

[andy11]

If you fancy a drive get it to Automedon in Blackpool, they will sort it no problem, just a bit of a drive though.

[poorpeet]

Follow the wires from the lambda sensors on the exhaust. You will come to a white block connecter. Make sure there is no corrosion on the contacts. Give them a good clean & see if it makes a difference.

[TVR Keith]

You say you've tried many TVR people, but have you tried Leven in Basildon, highly recommended by many on here

[over_the_hill]

poorpeet said:

Follow the wires from the lambda sensors on the exhaust. You will come to a white block connecter. Make sure there is no corrosion on the contacts. Give them a good clean & see if it makes a difference.

Mine kept cutting out while idling - ok when driving. It was the Lambda sensors. Discovered this when it failed the MOT on emissions.

[2 sMoKiN bArReLs]

jayzcycles said:

i have a 97 4.0 chimeara.i have had this car for 4 years now but only done 750 miles becuase of the irratic idle

I never worry about the idling, even if you get it right it won't be long before it's wrong again.

You've seriously only done 750 miles in 4 years due to such a teensy weensy defect?

[PJAC67]

You need to get out more. Seriously though, the less the thing is driven the more problems. I have more niggles when I don't drive regularly than otherwise - the car does too!
Case in point - I have driven 500 miles in the Griff yesterday and today and (touch wood) it hasn't missed a beat!

[blujay10]

PJAC67 said:

it hasn't missed a beat!

feeling brave, are we old boy?

[jayzcycles]

hi 2 smoking,yep 750 miles in 4 years and prob £6000.00 spent on it.i know its a waste but i love the car,i work 7 days a week so taking the car to work in rush hour is a no no until i can sort this prob.then maybe i can make up some of the miles i have missed out on.cheers averyone ,jay

[2 sMoKiN bArReLs]

jayzcycles said:

hi 2 smoking,yep 750 miles in 4 years and prob £6000.00 spent on it.i know its a waste but i love the car,i work 7 days a week so taking the car to work in rush hour is a no no until i can sort this prob.then maybe i can make up some of the miles i have missed out on.cheers averyone ,jay

Blimey! You've missed out on a lot of fun then mate.....get that baby rolling!

[andy-w]

Try getting the engine warm to a point where it idles nicely and then disconnect the stepper motor.
I did this to mine a couple of weeks back and have got a perfect idle that has not changed....it sits nicely at about 1.2k revs...if it still idles all over the place then you know it is not the stepper motor.
And i know i have got one defective lambda sensor so i cant see that being the problem...???

[aaandy]

The car sounds like it needs a good run out.You'd be surprised how much good this can do for it. Often the best recommendation for this kind of thing and the most fun!

But if it still isn't going as you feel it should, then just take it to a TVR Specialist as it sounds like something minor, just needs the know how.

All the best. Andy

Edited by aaandy on Saturday 18th November 09:49

[Ricardo Bertone]

Could be a dodgy fuel pump - there's a guy selling new pumps on ebay for around fifty quid.

Ricardo

[Rum Runner]

Make sure it is not the Alarm system as this has been known before

[over_the_hill]

aaandy said:

The car sounds like it needs a good run out.You'd be surprised how much good this can do for it. Often the best recommendation for this kind of thing and the most fun!

But if it still isn't going as you feel it should, then just take it to a TVR Specialist as it sounds like something minor, just needs the know how.

All the best. Andy

Edited by aaandy on Saturday 18th November 09:49

Would agree with this as a first step.
Drain the fuel tank if your fuel is old and replace with fresh stuff. Take it out at the weekend on some open roads where you won't have to sit still and give a good drive for a few hours.

[david beer]

Try changing the tune resistor to a non cat type(of course in the short term !), at least you will then know "a" direction to investigate. When my car became rather lumpy at partial throttle, running with this it was soooo smooth, so i knew it was fuelling. If you do decide to try it, do not pay anymore than 2p.