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Spa gauges are big with the porsche crowd... reputation for accuracy and precision... not yet installed, but soon Re brakes, thanks... could have gone brembo but these ap racing brakes seem like the best deal for a serious track car... I think they will come alive and really be put to the test once I get some stickies ! |
http://automoto.goodnano-av.com/
Questions and answers about 1973 oldsmobile 442 and Intrigue oldsmobile recall.
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I just got the Cipher cable from UpRev that has the ability to pull codes but I'm not sure of the compatability with the 370z - but I do know that any OBD2 code reader would be able to pull any codes off any vehicle built after 1996. |
I've been working with Coulter Nissan on the diagnosis... good guys there!
They pulled MANY codes off the car, but all were related to disconnecting and reconnecting various wiring harnesses and none seem to relate to the throttle and engine cut-off issues. We have a few theories, but the plan now is that I will bring their master tech with me to the track at PIR next weekend 9/12-13 for my next NASA event. We intend to hook up the dealer's computer while running and see if we can capture some freeze frame data to isolate any sensor variables that are out of range and isolate the timing of any codes that coincide with limp mode or engine cut-off. More later. |
Cool - Can't wait to hear the outcome and I wish I could come out to see what the nissan software looks like and how it operates. Good luck and keep us posted!
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Incredible post, Travis!
I spent the last several hours reading all 21 pages of your post (this is what I do on my Labor Day Holiday!). Your build history, parts, and comments, testing is awesome! You also have a great tech/fab at Redline! I'm anxiously waiting on your next post. I hope you get the engine shut-down issue fixed soon. It's cool that Nissan is sitting with you at the track downloading data real-time! It seems they have an interest in your endeavor.
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Thanks for jumping in... okay to ask questions and share your thoughts here... I'm not worried about thread-jacking!
More updates later this week |
I had a engine cut-out this weekend during auto-x. It was purely a fuel cut after taking a long sweeping right hand turn at 1.2G below 1/4 tank, except that the cut lasted an extraordinarily long time before it got going again. The programming on the engine computer seems to be a little slow to recover compared to previous engine revs.
Obviously you have more going on than that but just wanted to point out how sensitive these engines are. |
Chris, how can you be certain it was a fuel issue? thx
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one of these days i need to see that car. I mean ive been to your house and have seen what used to be in your car. when is it going to the track again?
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It's not a new problem, it used to happen in my G35 as well. But where the cut out in the G35 was momentary, in the 370 it seemed to last about 2 seconds or more. Luckily I had completed my winning run on the run just prior, it would have sucked to lose because of that. |
I'm going to try topping off before every run tomorrow and see if that fixes the problem
Unfortunately dealer backed out on joining me at the track... Will update this weekend |
Problem identified !!!
I kept the car topped off all day today, refilling every other sessions... only 1 issue with loss of throttle! It happened when I was 5 bars away from full and pulling sustained 1g loads through right hand turn. I'm now 99.99% convinced that the issue is fuel related. I look forward to upgrading the fuel system! Wondering if we should start another thread on the fuel starvation topic and spread the word? Going to go to my 'Track Video Journal' and add a new video from my session today. |
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