Fun with troubleshooting leanness (and 5th gear cruising temps) |
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Fun with troubleshooting leanness (and 5th gear cruising temps) |
emerygt350 |
Mar 15 2024, 03:37 PM
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#1
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Advanced Member Group: Members Posts: 2,139 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
So I have been playing with adding resistance to the cht to bump my mixture. Messing with the mps was not getting me to where I wanted to be I wanted something a little more global. Anyway, bought a 10 dollar Bluetooth relay. Set it up so one channel was clean the other had 50ohms resistance in it. As I am driving I can switch back and forth and watch the results on the cht and AFR. 50 is really working well (this is all in addition to my 250ohm found on 73s). Now I have added another 20 ohms to the alternate so the relay will switch between 50 and 70. It ain't pretty but it's only for troubleshooting.
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r_towle |
Mar 17 2024, 06:35 PM
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#2
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Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
It’s been a while, but I did get a 2.4 to work.
I tried every MPs ever made, ended up back with the proper 914, though I set it up for my engine and tune. Djet was in more than the 914, and the MPs are all a bit different. The Volvo p1800 ES MPs was very rich. I remember using a POT (volume knob) in the CHT circuit while watching an 02 sensor live while driving in different condition's It was a combination of CHT and mps, raising the FP a bit to get it slightly rich, which was the goal. This was….2004, and it was a race/autox toy, and still is out there racking up the miles with no drama. It took me a while, but once set it was done. Rich |
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