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B230FT wont start- part 2 900

posted by  kittysgreyvolvo on  Fri Dec 22 13:20 CST 2023
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last visit: Sat Oct 18 15:23 CST 2014
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Hi Bill,

Dave Barton uses Penetrox and OxGard as Ron Kwas does.
https://www.240turbo.com/headlightrelay.html

http://www.sw-em.com/anti_corrosive_paste.htm


Dave Batron has LED headlight info here:

https://www.240turbo.com/headlight.html

I dunno the pins, yet you check for continuity between two of the three pins on the crank position sensor (CPS) connector.

Did you treat this with penetrox, with the zinc particles in it? I can't find out whether the penetrox grease is conductive or not. You use stuff like that in medium and high volt applications, like ground plates inside an OSP cabinet with power transmitters in it for cell, microwave, and such.

These wire harness connectors use pins or jack that are tinned atap copper alloy. You want no metal particles constantly debridingn (scratching) the tin plate atop the copper alloy. Also, is the carrier lubricant conductive or not? If yes, you can short out the AMM connecting pins. With DeoxIT-D, it's dielectric, so you can apply across the connector or ECU pins and reconnect. Same thing for any low volt DC conductor or harness carrying low volt, low AMP DC and signal, like the engine control wire harness and connected sensors.

The AMM/MAF can fail in Volvo as the preheater flappy valve in the air filter box. Fails to all hot all the time and prevents ambient cool air to enter. Replace the air temp thermostat (Borg Warner WAhler 70411) or remove the preheat assembly for a cold air intake. What I did. Mileage can suffer in extreme cold.

http://www.v8volvo.se/mekartips/volvo/

Time for a digital multi meter and test through the harness?

The 700-900 FAQ includes most of the test info with a DMM.

Wiring diagrams.

Here as Oz Volvo.

https://ozvolvo.org/archive/

Use browser web page search for:

Find the
Taliessin Penfound - TP32352-1 1993 240 Wiring Diagrams.pdf

PDF page 20 item D. Show all three CPS wires connect to the harness. So continuity across 1 and 2. It is not a power sensor, Just an impulse sender. Did you treat this ocnnector with penetrox?

I use eggnog to halt corrosion. By the bucket! Moar eggnog!

Happy Fryday during the moar eggnog holidayze!
--
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