Help Bruce keeps cutting out

[ScottieJ]

I have an SPI 1.3 in my shop that I have no use for. I can't guarantee it's all ok but if you need any bits off it you are welcome to them for a small fee (will be refunded if anything I supply turns out to be faulty!)

Let me know if there's anything you need and I'll see if they are still on the engine.

[tonsky]

cheers scottie i shall keep you posted as we check items and let you know any parts we need

Thanks all you have really helpful

[tonsky]

ok 3 of us looking at bruce and no lambda sensors front or back to be found

any further ideas?

Thanks

Toni

[Edweird]

Okay, I've been having a look around on the net and found the following:

http://wiki.answers.com/Q/What_causes_a ... r_1000_rpm

What causes an engine to stall at idle but run fine over 1000 rpm?

Answer

Your throttle body is probably dirty,The throttle body has a hose from the air filter housing attached to it,the throttle body is attached to the intake phlenum.Take the hose off(its rubber with a clamp on it).Do this with a cold engine, NOT RUNNING ! spray some carburetor cleaner inside the venturi and scrub it with a toothbrush,on the side of the throttle body there is a place where a cable goes into,twist the direction of cable to open the throttle plate(inside the throttle body),and continue to clean.Now put it all back together.What happens over a period of time is the Throttle body gets clogged with carbon and cannot breath at idle, the throttle plate when close(at idle)has a very small air gap and cant breath when dirty.If this does not cure your problem,then you will need to consider having your ais motor check.ais= automatic idle speed motor.For this you will have to take the throttle body off to replace it and the screws have been installed with locktight and are tricky to get out.Hope this helps,I did not know what year or make of car, but its a common problem since the fuel injectors took the place of the carburetors.
** Be careful that any cleaners used are for Fuel Injected systems and are O2 sensor safe. Some Carburator Cleaners can damage FI components.**
Spraying a throttle body spray cleaner, such as one sold by STP, to clean the throttle body, then starting up and revving the engine, may be enough to dislodge the carbon deposits and material blocking the airway. The original poster's solution is the cheap and easy way to handle this problem of low engine RPM causing stalls. Try it first, it is a fast fix, and it worked for me, causing my engine RPM to go up above the stalling level when my car was idling at a stop sign or red light.

[tonsky]

Thankyou so much will give that a go and will report back :-)

[Edweird]

Thankyou so much will give that a go and will report back :-)

It's alright, all I did was Google it. Given that carburettors were out-of-date when I was born, I know more about how carb engines work than fuel injected ones.

[ScottieJ]

On the engine in the workshop the lambda sensor was on the back of the exhaust manifold, just where the pipes merge into one and below the heat sheild.

[tonsky]

cheers scottie off to have a look