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iratic idle


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#1 JSnowDude

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Posted 07 December 2005 - 08:40 PM

Hey there,

Just wondering if anyone had any idea as to where I should begin looking to cure the following problem. Basically the alternator had died and I replaced it and that part is fine, however, when the engine idles it jumps up and down and almost stalls. What should I be looking at to rectify this prob.

Any help or advice is going to be much apprecited.

Thanks

Justin D.

#2 Sprocket

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Posted 07 December 2005 - 08:53 PM

Carb or injection? :thumbsup:

For different problems :gimme:

#3 JSnowDude

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Posted 07 December 2005 - 08:56 PM

It's a single point injection. should have mentioned that really!

#4 Bungle

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Posted 07 December 2005 - 09:23 PM

air leak somewhere on the inlet manifold ? :erm:

#5 Sprocket

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Posted 07 December 2005 - 11:39 PM

I'll see if i can find a previous post as i'm getting tired of typing this out. No offence intended. :cheese:

#6 Sprocket

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Posted 08 December 2005 - 12:05 AM

Read these in this order, oldest first as the information gets more acurate as more is learned and myths are set aside. :thumbsup:

http://www.theminifo...topic=10173&hl=

http://www.theminifo...topic=12722&hl=

http://www.theminifo...88&hl=injection

http://www.theminifo...56&hl=injection

http://www.theminifo...90&hl=injection

http://www.theminifo...08&hl=injection

http://www.theminifo...07&hl=injection

http://www.theminifo...showtopic=20293

Edited by Mini Sprocket, 02 February 2006 - 11:22 PM.


#7 JSnowDude

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Posted 08 December 2005 - 07:56 PM

Thanks, I'll have a read and hopefully get some reuslts soon.

#8 Sprocket

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Posted 08 December 2005 - 08:05 PM

Only one extra piece of advice. When changing the Oxygen sensor make sure you get the Bosch direct fit item and when changing the plugs make sure you get the NGK BPR6ES type.

#9 boXXer

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Posted 23 December 2005 - 08:04 PM

throw the SPI in the bin, and get a LOVELY set of 40's. thats the way ahead. :grin:

#10 Sprocket

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Posted 23 December 2005 - 11:08 PM

Found out another problem related to erratic idle.

The relay supplying the heater of the Lambda sensor can fail, causing the sensor to read rich at idle as it runs cooler, causing the ecu to 'lean out' the fueling and resulting in lean missfire at idle. All other driving conditions are fine.

My SPI is now running tip top as it should be with no comlaints :wub: . A single Webber 40 is a little extreme never mind a pair of them :nugget:

#11 Sprocket

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Posted 30 December 2005 - 08:28 PM

For reference

Bosch oxygen sensor part number is........0258 003 193

And use this link to find your local Bosch stockist/ motor factor

http://www.boschauto...oduct&intType=1

Edited by Mini Sprocket, 30 December 2005 - 08:33 PM.





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