Quote:
Originally Posted by mcguirjf
The ALDA is unmolested with the original black cap on top.
I will check to see if the egr is stuck. The intake runners only have 90K miles on them with very little sludge inside.
What is the part number on those transducers?
If there are error codes, could that result in car running in safe mode (shutting down the transducers) resulting in this rich condition?
I'm hoping my compression values are good and this is nothing more than a computer issue!
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The transducers have gone through revisions over the years. The one I got had a totally different part number and was smaller, but it works just fine and mounts up to the bracket perfectly. Don't know the PN off the top of my head, but you might have some luck discussing it with Phil on fastlane.
You can test the vacuum operated gadgets with straight vacuum. If you hold the wastegate closed with straight vacuum, be careful not to drive it too hard or you'll risk damage from overboosting. It would be good to have a boost gauge hooked up while doing this testing so you know you're not boosting to dangerous levels.
Error codes will hold your wastegate open. What is the power like? Is your 0-60 18-20 seconds? If so, your wastegate is not closing. If the EGR isn't working (transducer or valve itself) you may have an EGR transducer code. If something is wrong with the EGR system you may also get the airflow meter code. If you haven't built one already, build a code flasher/clearer. I've posted the link numerous times on here, so a quick search should turn it up. Costs about $20 in parts from Radioshack and a bit of time to solder it all together.
Also, the only thing the EDS does on the IP is control idle speed. The rack is controlled through the cable and linkage by your right foot. I don't see how the ELR actuator could create an over rich condition.
One more thought...if the ALDA went bad somehow and allowed full enrichment all the time and the turbo wasn't building boost because of error codes, you would have one hell of a smoke show. Are we sure the IP and ALDA on this new engine is good? Check and see if there are any extra shims under the ALDA as well...simply looking for the protective cap on top does not guarantee that it hasn't been tampered with underneath.
Hope you can get this sorted out without too much trouble...I have pretty much memorized the systems of the 602.962 by troubleshooting and working on mine. Currently my 300D is at home 2500 miles away
