Being a little impatient, I decided to try to fix the AC line - I got it welded OK, but the heat killed the hose/crimp...
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Wouldn't hold vacuum. Took two other fittings & made one - cut off the beadlock & welded on the MOR fitting from the one shown below
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Combined that with the earlier iteration hose I had made for the low side (didn't care for it as it sits up against the bulk head - however it has more length & more give. It held vacuum & charged just fine, so we'll see how it goes. I still have new fittings on order so I can make an alternate as needed later one. Just want to make sure I have working AC for the drive to MWB Open House next month
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Back to the idle issue... on the drive home we hit two 30-40min delay zones - crawling, on off gas, and the throttle decided to act up on the 2nd crawl - won't drop below 2K when coming to a stop - most annoying. The car didn't overheat at all though -stayed right at around 200 stationary & dropped once moving. What I did when we got home was to remove thew TB & reset the bobbin tension to a stiffer setting - I assumed the bobbin tension at rest was not countering the pre-load spring in the TPS, and hanging up - sometimes.... Anyway, when I drove it this morning, is seemed better - but then it hung again. Fiddling around the TB & TPS, I found that if I jiggled the TPS connector just so, I could make the IACV surge. I had bought a generic TPS pigtail back when I went through all the TPS nonsense last year. I removed it & replaced with a high quality Sumitomo connector housing & terminals (HX 040 series)
removing pigtail & terminals
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crappy ones
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recrimp with new termnials
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Seems better, at least it hasn't hung up once in the various drives I took this afternoon. Time will tell on this one.