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TaKid455 · 05-17-2011, 10:09 AM

Did more test only to get nowhere except a potentially bad sender.

According to the wiring diagrams, there is no regulators shown and the gauge wire is a direct run sans the firewall bulkhead connector.

Found another 86 cluster from junk yard. - no difference, gauge climbs to 260+ in short time period

Removed green wire from dash cluster plug and ran another one from that termional directly to gauge. (terminals are same as 2nd gen which I have plenty) No difference in Ohm readings from original and jumper wire at 0.2 - 0.3 ohms. - no difference

Using jumper wires to pull from power, ground and sender, I hooked up a 2nd gen gauge along with original and junk yard cluster. Constant ground was also switched between a body ground and ground terminal on cluster plug.- no difference.

Did same as above with another jumper connected to body of sender to know good ground and repeated test. - no difference.

The above test eliminated faults w/in the car's wiring and back feeding. Essentially externally reading the sender stand-alone. At least that was the intent.

This is about the 3rd or 5th sender between various people that have touched this car. Possible bad run of senders??? Looking for a known working sender and cluster currently.

05-17-2011, 10:09 AM	#8
TaKid455 Join Date: Oct 2008 Posts: 586 iTrader: (1)	Did more test only to get nowhere except a potentially bad sender. According to the wiring diagrams, there is no regulators shown and the gauge wire is a direct run sans the firewall bulkhead connector. Found another 86 cluster from junk yard. - no difference, gauge climbs to 260+ in short time period Removed green wire from dash cluster plug and ran another one from that termional directly to gauge. (terminals are same as 2nd gen which I have plenty) No difference in Ohm readings from original and jumper wire at 0.2 - 0.3 ohms. - no difference Using jumper wires to pull from power, ground and sender, I hooked up a 2nd gen gauge along with original and junk yard cluster. Constant ground was also switched between a body ground and ground terminal on cluster plug.- no difference. Did same as above with another jumper connected to body of sender to know good ground and repeated test. - no difference. The above test eliminated faults w/in the car's wiring and back feeding. Essentially externally reading the sender stand-alone. At least that was the intent. This is about the 3rd or 5th sender between various people that have touched this car. Possible bad run of senders??? Looking for a known working sender and cluster currently. Last edited by TaKid455; 05-17-2011 at 10:11 AM.