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Author Topic: My idle problem - returning fault code  (Read 2971 times)

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JamesV6CDX

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My idle problem - returning fault code
« on: 23 December 2007, 16:10:47 »
I'm not sure if this gives any indication of what my idle problem could be.

Today I cleared out the codes with Kevin's cheapo Tech2. Ran the engine on PETROL only, and checked again.

Fault code 57 (Idle air control voltage low) keeps reappearing. I tried a few times. Sometimes it only appears on the laptop with the engine running. I have already changed the ICV with no joy.

Any ideas please? :)

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cem_devecioglu

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Re: My idle problem - returning fault code
« Reply #1 on: 23 December 2007, 16:25:36 »
Problem with air RAMS  :-?
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cem_devecioglu

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Re: My idle problem - returning fault code
« Reply #2 on: 23 December 2007, 16:26:48 »
problem is, this will effect LPG idle much worser
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JamesV6CDX

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Re: My idle problem - returning fault code
« Reply #3 on: 23 December 2007, 16:29:31 »
I've checked v thoroughly for air leaks etc - there are none.

Multirams would effect performance, but I'm not sure about idle?
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cem_devecioglu

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Re: My idle problem - returning fault code
« Reply #4 on: 23 December 2007, 17:15:59 »
I have also problem with idle for long and its intermittent..Changed everything (also new ICV ) except MAF, Air Temp sensor and Multirams..

I give order for a new MAF and Air temp sensor ..Will come within 10 days..I will report the result here..

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Taxi_Driver

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Re: My idle problem - returning fault code
« Reply #5 on: 23 December 2007, 20:58:08 »
Have you tried following the diagnostic in that program that no one has, it could help  :y

Click on the C-30 it will take you thro checking procedure  :y
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JamesV6CDX

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Re: My idle problem - returning fault code
« Reply #6 on: 23 December 2007, 21:04:21 »
Quote
Have you tried following the diagnostic in that program that no one has, it could help  :y

Click on the C-30 it will take you thro checking procedure  :y

Oooooo I will look at that tomorrow.

I'm using Mr DTM's re-programmed software , it's Very good  ::)  :-X
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Taxi_Driver

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Re: My idle problem - returning fault code
« Reply #7 on: 23 December 2007, 21:18:16 »
Quote
Quote
Have you tried following the diagnostic in that program that no one has, it could help  :y

Click on the C-30 it will take you thro checking procedure  :y

Oooooo I will look at that tomorrow.

I'm using Mr DTM's re-programmed software , it's Very good  ::)  :-X

Mine didnt appear  :(
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TheBoy

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Re: My idle problem - returning fault code
« Reply #8 on: 23 December 2007, 21:19:55 »
The code is pointing at the icv....
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Abiton

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Re: My idle problem - returning fault code
« Reply #9 on: 23 December 2007, 21:28:10 »
...or the wiring to it.  Possibly an intermittent short to another wire?
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JamesV6CDX

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Re: My idle problem - returning fault code
« Reply #10 on: 23 December 2007, 21:47:31 »
Quote
...or the wiring to it.  Possibly an intermittent short to another wire?

Given that I've changed the ICV for a known good from another car, I guess wiring is likely to be suspect also.

Anyone know what pins on the ECU I should continuity test to?
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TheBoy

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Re: My idle problem - returning fault code
« Reply #11 on: 23 December 2007, 21:50:23 »
Quote
Quote
...or the wiring to it.  Possibly an intermittent short to another wire?

Given that I've changed the ICV for a known good from another car, I guess wiring is likely to be suspect also.

Anyone know what pins on the ECU I should continuity test to?
Check Haynes - the wiring diag will cover your engine loom
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JamesV6CDX

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Re: My idle problem - returning fault code
« Reply #12 on: 23 December 2007, 21:51:35 »
Quote
Quote
Quote
...or the wiring to it.  Possibly an intermittent short to another wire?

Given that I've changed the ICV for a known good from another car, I guess wiring is likely to be suspect also.

Anyone know what pins on the ECU I should continuity test to?
Check Haynes - the wiring diag will cover your engine loom

Electronics not my strong point, but I'll have a look. Cheers TB :)

Interestinly, it's begaving fine since I put half a tank in from another garage. Makes me wonder..  ::)
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JamesV6CDX

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Re: My idle problem - returning fault code
« Reply #13 on: 23 December 2007, 21:53:39 »
Ultimately, I think I may need to speak nicely to someone with a real Tech2 and go for a live data run ;)
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JamesV6CDX

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Re: My idle problem - returning fault code
« Reply #14 on: 24 December 2007, 06:53:10 »
Really fed up now. This morning it was almost perfect on changeover to gas - and then with no warning at all it cut out on me when dipping the clutch, approaching a roundabout.

It's one of those annoying faults - I wish I could get to the bottom of it
 :'(
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