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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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B230e to b230ftViews : 1106 Replies : 29Users Viewing This Thread : |
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Jan 14th, 2022, 15:13 | #21 | |
Trader Volvo in my veins
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Jan 14th, 2022, 15:30 | #22 | |
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If it is a non-ABS car, it will give 12 pulses per turn of the wheel, if it has ABS it will give 96 pulses per turn before the converter and 12 after on the back of the instruments. This will give a false reading to the speed input circuits of the LH2.4 Jetronic ECU. However, you're right about one thing - the problem won't be there as the OP has decided to go for a bit of mild tuning on the B230E instead so no EFi will be going near this car and therefore no problems.
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Jan 14th, 2022, 16:42 | #23 | |
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If you don't feed it any pulses and the throttle is wide open it gets unhappy and punishes you with a super high idle. Still the use of the speed sensor is unknown, except for keeping idle high until you stop on a cold day. Why it does that noone seems to know. For speed measurement for the speedo it would be important. |
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Jan 14th, 2022, 18:50 | #24 |
Trader Volvo in my veins
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Exactly this
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Jan 15th, 2022, 22:35 | #25 |
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If you are thinking of buying a 940 as a donor you could always swap the axle if that's a problem. The ratio from the donor might be more suitable anyway. There are quite a few differences between pre 95 940's compared with the earlier ones so a pre 95 with the main fuel pump under the car might be more suitable. You won't then get the m90 gearbox though.
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Jan 15th, 2022, 22:50 | #26 | |
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Speedometer signal. Vehicle speed signal from the speedometer. Used to adjust idling speed during engine braking and for constant idle speed compensation. Copy/pasted from : https://ipdown.net/wiki/index.php?title=LH_2.4_Jetronic It's the correct reason too. What isn't mentioned is that all that helps with emissions and helps prevent unburned fuel entering the cat which can overheat and/or poison the cat.
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Jan 17th, 2022, 16:39 | #27 | |
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Jan 17th, 2022, 16:51 | #28 | |
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As for hypermiling, i'm glad you have success with it, i've tried it over 35 years in various different cars with different injection systems (Bosch L-Jetronic, LE-Jetronic, Lucas which was Bosch L-Jet under licence, Bosch LH2.2, Bosch LH2.4, Bosch Motronic early c.1990, Bosch Motronic later c.1997, Honda PGM-Fi and probably a couple of others i can't think of now) and i've never had such good mileage as when i drive how i normally drive.
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Feb 13th, 2022, 15:55 | #29 | |
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B230E to Turbo
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I was following on from previously, I did say I would put some info on when I had finished my K-Jet turbo. I did get the B21ET fuel distributer and air filter housing, along with the fuel pipes, I couldn,t get it to run right at all with the warm up regulator connected wrong. So I put it back to the later pics, but using the bigger B21ET fuel distributer under the inlet manifold. I was able to adjust it this way, and get the exhaust gases right with my modest DIY meter. I will most likely try and put it like pic 1 again, now I’ve got the fuel distributer set up somewhere near although in a different location. Keeping the fuel distributer under the manifold was an idea I found online, apparently a chap from IPD did it with a 240. I moved the battery to the passenger side so just need to sort out a washer bottle. I replaced the sump for one with a purpose made oil return fitting in it, which was handy. The parts I needed for phase 1 were. Intercooler Turbo exhaust manifold, Oil cooler, sump coolant hoses for the turbo and oil hoses. B19ET fuel distributer. Mitsuibishi Turbo Warm up regulator from B21ET engine. Exhaust front pipe from B19ET, which needed extending by about 4 inches. One of the mistakes I made was to connected the flow and return to the warm up regulator the wrong way, that delayed me a bit, so its got the vacuum line on for boost enrichment I believe. https://postimg.cc/gallery/g8dXNHt |
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Feb 13th, 2022, 16:14 | #30 | |
Go redblock or go home
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