TVR Chimaera unknown relay & Resistor

TVR Chimaera unknown relay & Resistor

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USChimaera

Original Poster:

19 posts

53 months

Tuesday 8th April
quotequote all
My 93 Chimaera 430 quit on the way to a car show in Florida. I checked and bypassed both the main power relay and fuel pump relay. Checked, it has fuel pressure and spark but won't run. While trying switching relays I unplugged one to swap with another relay and accidentally found that there was not a plug but five wires were attached to it. Now I don't know which terminals to attach the wires or what the relay if for. All the wiring diagrams show only two relays, one for the pump and a main power relay from the ECM harness. Also, a resistor fell off while I was working along side the road. 130 mile towing to my home so does anyone know what the relay and resistor hook up to? Also, what wires go to each terminal of the mystery Bosch Relay 0332014107 ?

The mystery relay is on the left fuel pump in the photo.


miniman

27,745 posts

275 months

Tuesday 8th April
quotequote all
The resistor is the tune resistor and goes here:


Belle427

10,264 posts

246 months

Wednesday 9th April
quotequote all
This may help

USChimaera

Original Poster:

19 posts

53 months

Thursday 10th April
quotequote all
Thank you for the placement of the tune resistor? Both of the normal relays (Pump and power) are wired correctly and work. The other one seems to be coming from the factory tape wrapped engine management wiring loom. I think my next step is to unwrap the loom to see where the wires go. Thai relay was buzzing when the engine died.

Belle427

10,264 posts

246 months

Thursday 10th April
quotequote all
Check the wiring colours, there should be some in there for A/C too.
https://www.pistonheads.com/gassing/topic.asp?h=0&...

DVR V8

545 posts

224 months

Thursday 10th April
quotequote all
Some info from the loom harness drawing. . Only two used unless you have A/C then they are all used.

Edited by DVR V8 on Thursday 10th April 15:17

miniman

27,745 posts

275 months

Thursday 10th April
quotequote all
USChimaera said:
Thank you for the placement of the tune resistor? Both of the normal relays (Pump and power) are wired correctly and work. The other one seems to be coming from the factory tape wrapped engine management wiring loom. I think my next step is to unwrap the loom to see where the wires go. Thai relay was buzzing when the engine died.
I think it could be a hot start kit. On mine, the negative connection was (per the dubious design) loosely connected to an empty relay socket and fell out.