[urq] No start - situation

[Keith Lloyd]

Hi Steve

my posting below seemed to get on the list ahead of my epic one which I wrote first and which contains my test results.

I can confirm that the ECU is receiving battery voltage 12.4v when ignition is switched on. The battery is brand new yesterday and fully charged.

Re: The timing sensors - I will admit to being a little confused by Phil Ps text- they have the correct resistance according to the initial tests but Phil says "if bad, proceed" which suggested to me that if they were in spec, you accept as good and move on to test the next component. But at the end of the section, it says, "if the sensor passes the test, replace the sensor" I don't get it.

Could be that I've read and tried so much I can't see the wood for the trees now.

Just going to check the earth straps around the engine bay now and double check.#

Thanks again

Keith  
 
> From: urq at pacbell.net
> To: urq at audifans.com
> Date: Fri, 9 Apr 2010 07:19:19 -0700
> Subject: Re: [urq] No start - situation
> 
> No. The ignition side of things is an output and would not affect the basic
> inputs you describe. 
> 
> If you believe the timing sensors are working properly you may want to
> verify that the grounding at the intake manifold is good. I'd even try
> keeping a charger attached to the battery to ensure that the battery voltage
> is OK. How have you tested the sensors? Have you verified that the ECU
> itself is getting power?
> 
> Steve Buchholz
> 
> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On Behalf
> Of Keith Lloyd
> Sent: Friday, April 09, 2010 6:06 AM
> To: Audifans List List
> Subject: [urq] No start - situation
> 
> 
> Another question - I'm sorry about this - If, for fuel to be delivered the
> ECU needs to receive syncronous signals from TDC sensor, RPM sensor and hall
> sender - would the fact that the ignition output unit and/or the coil aren't
> working mean the ECU wouldn't receive these signals? Isn't the function of
> the ignition output unit downstream of the hall sender because if it is I
> have still not explained why the fuel isn't pumping because my tests suggest
> the RPM, TDC and hall senders are working fine.
> 
> I'll be glad when this is sorted..........as will you all, no doubt!
> 
> Thanks
> 
> Keith
> 
> 
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