[doc] Re: faulty ecu help?

["blackaddertoo" <blackaddertoo@xxxxxxxxxxx>]

hi

thankyou for the advice. Martin has said that he can check and 
replace with a recon one. 

i need to check the wiring to it first and the ground next to.

however do i take it the this ecu is powering up the idle motor and 
telling it to go lean/rich?
i had the engine running for 30 seconds, car was about to stall then 
removed plug to motor and engine slowly recovered to 1800 rpm and 
sat there. just wondered why would this happen? there is no return 
spring or something in the idle motor is there?. would it not stay 
at the same position either open or closed.?

i need to move the car 2 miles (to a rented garage), i assume it is 
ok to drive but just have this high idle?.

regards

Steve
vin 1621
doc 370




--- In doc-uk@xxxxxxxxxxxxxxx, Nick Tomlinson 
<nickandkathryntomlinson@xxxx> wrote:
>
> I could but Richard Hutchinson will prob have more time than I 
have.
>    
>   Sounds like it could be the output transistors have gone open 
circuit.
>   This can happen if the idle speed controller goes short circuit.
>   Only a quid each to replace.
>    
>   NickT.
> 
> essexdick <tny1964@xxxx> wrote:
>   
> Im not sure but i think Nick T repairs them maybe.
> cheers tony vin#3484
> 
> --- In doc-uk@xxxxxxxxxxxxxxx, "blackaddertoo" 
> wrote:
> >
> > hi
> > 
> > finally getting to the root of my running problems.
> > now have intake manifold reinstalled. car did the same, ran for 
30 
> > secs then gets bogged down and stalls but if i remove the idle 
> speed 
> > motor cable, then the car idles ok at 1800 revs.
> > so to fault find do i need to check the earth to the ecu, the 
> diode, 
> > the feed from the coil and the motor and the ecu.
> > i connected the cable back, statred and engine started to stall 
> > after 20 seconds, i then pulled the cable of and engine slolwy 
> > picked back up to 1800 revs.
> > therefore is the idle speed motor working but the ecu is feeding 
it 
> > duff info and making it too lean or rich?
> > anyone any good ideas? and Martin, if i parcel posted the ecu to 
> you 
> > are you able to fully test? or plug into another car?. if i was 
> near 
> > you i'd book the car in1.
> > 
> > thanks for any help.
> > 
> > regards
> > 
> > steve
> >
> 
> 
> 
> 
> 
> 
> 
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