[urq] I'm SO close to giving up...Anyone have a stick of TNT !!

[Brandon Rogers]

Did you measure resistance at the sensor or at the ECU?

Brandon


----- Original Message ----- 
From: "JP Chaplen" <quattrodude at comcast.net>
To: "'Jim Haseltine'" <jim_haseltine at ntlworld.com>; "'Chaplen, John'" 
<John.Chaplen at mercer.com>; "'Urq List'" <urq at audifans.com>
Sent: Friday, April 15, 2005 8:07 PM
Subject: RE: [urq] I'm SO close to giving up...Anyone have a stick of TNT !!


>I have checked the intake temp sensor and it is working within the
> parameters of what the factory manual is telling me...And I have checked
> all the connections are tight/snug for the unit
>
> (forgot to put that on the list)
>
> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On
> Behalf Of Jim Haseltine
> Sent: Friday, April 15, 2005 4:40 PM
> To: Chaplen, John; Urq List
> Subject: Re: [urq] I'm SO close to giving up...Anyone have a stick of
> TNT !!
>
> Does the WX have an inlet charge temperature sensor? On the WR it's
> fitted
> in the inlet manifold just above the throttle body, on the MB it's
> fitted in
> the outlet of the intercooler.
>
> Broken, poor or intermittant connections to this sensor can give you
> almost
> exactly what you describe. Feels like one or more cylinders are
> 'missing'
> but if you lift your foot slightly it clears. If you then s-l-o-w-l-y
> press
> down again until you reach WOT the missing doesn't return until next
> time
> you try to accelerate sharply.
>
> It's common practice now in the UK to remove the soldered connections
> from
> this sensor and crimp spade connections onto the wires.
>
> Regards,
>
> Jim Haseltine
>
> ----- Original Message ----- 
> From: "Chaplen, John" <John.Chaplen at mercer.com>
> To: "Urq List" <urq at audifans.com>
> Sent: Friday, April 15, 2005 11:49 PM
> Subject: [urq] I'm SO close to giving up...Anyone have a stick of TNT !!
>
>
> Ok....basic problem...Under "WOT" and boost the car stumbles...back off
> the throttle just a TAD and car starts pulling strong again...
>
> What's been done...(not necessarily in this order)
>
> 1 New fuel injectors - all lines checked and cleaned
> 2 fuel Dist checked, but rebuild anyways (with increased flow) - all
> retested..seems no problem with flow.
> 3 Volume test done - Ok'd
> 4 Pressure test done - Ok'd
> 5 Back flow from Exhaust - NP there
> 6 Checked for the small filter ...no problem there
> 7 checked WOT and IDLE switch..all fine there
> 8 new cap, rotor, spark plugs and wires...
> 9 Volt at coil is 13-14 volts
> 10 all grounds clean and tested
> 11 Compression check + - 10psi between all 5 cyl
> 12 Pulled all 5 plugs, they all look fine, no damage, they all look the
> same too...clean and right color...(bosch tri-electrodes)
> 13 Swapped ECU with known good one...still same problem
> 14 checked Waste gate for torn diaphragm - no problem there
> 15 New fuel filters (twice)
> 16 Boost is NOT passing 14 psi (chipped by SJM)
> 17 checked all hoses and removed them, they are fine.
> 18 I have backed boost down to less than 9psi still same symptoms
> 19 removed full throttle cable (thinking it might be a full throttle
> mode) nope..
> 20 new and checked the Freq valve for duty cycle looks correct and can
> hear it working
> 21 rebuilt alternator to make sure voltage/amps were not a problem
> 21 car passes DEQ SUPER clean...
>
> I guess my last question would be that I can think of, are there any
> sensors that might be bad that would put the car into a reduced timing
> mode?
>
> I have had Scott Mockery drive the car, and it's NOT a fuel cut out
> issue (4K cut out).
>
> I just installed a fuel air meter box Wednesday, but have not had a
> chance to run it...but from tests at idle with running WOT switch, it is
> fully enriching as it should do...
> and running and idle it's stoich? (sp)...I will be trying to drive it
> this weekend to see if it's running too lean...But to me at this point I
> feel like it's a timing issue?
>
> (NOTE- I have done all of the above to try to fix this problem)
>
> Any help would be so much appreciated!!!
>
>
>
> John Chaplen CNE
> Mercer Human Resource Consulting
> Portland, OR 97204-3693
>
>
>
>
>
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