 75 Instrument Cluster Light Question |
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| lsintampa |
 Feb 22 2016, 02:10 PM
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#1
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Senior Member  Group: Members Posts: 520 Joined: 28-January 13 From: Tampa, FL Member No.: 15,441 Region Association: South East States  |
1975 original CA - car so it had EGR
On instrument cluster middle gauge - on the sides are two lights (not in the gauge, but in the panel) One says EGR The other (in my car) the lens has fallen off and I have no clue what it is. In any event there is a red/white and blue/yellow wire that goes to one of them (or the other) and with power on - it blinks constantly. Q. What are those two lights? (one being the EGR warning - what's the other) Q. What color wires go to each - is the EGR the white/red + blue/yellow or ??? Thanks, Len |
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| lsintampa |
Feb 22 2016, 02:28 PM
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#2
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Senior Member Group: Members Posts: 520 Joined: 28-January 13 From: Tampa, FL Member No.: 15,441 Region Association: South East States |
OK,
One was for the EGR light The other for the CAT light I have neither any longer - long since removed by PO(s). So which is the red/white + blue/yellow ??? That one (either it is EGR and or CAT) blinks when power is applied. Just curious why it blinks - and doesn't go solid? I'm going to pull the bulbs anyway, but just curious if the blinking for either was normal???? Anyone know? Thanks, Len |
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| JeffBowlsby |
Feb 22 2016, 02:53 PM
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#3
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,963 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Do you even have the CAT or EGR valve/tuning still in place?
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| lsintampa |
Feb 22 2016, 03:02 PM
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#4
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Senior Member Group: Members Posts: 520 Joined: 28-January 13 From: Tampa, FL Member No.: 15,441 Region Association: South East States |
QUOTE(Jeff Bowlsby @ Feb 22 2016, 03:53 PM)  Do you even have the CAT or EGR valve/tuning still in place? Nope.... All plugged and done. I don't understand why that one light blinks when power is on. Not sure which lamp it belongs to (cat or egr) but it blinks under power. The counter has long been removed - so speedo cable goes directly to the speedometer. Strange. |
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| JeffBowlsby |
Feb 22 2016, 03:05 PM
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#5
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,963 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Do you have the CAT relay in the rear trunk? Unplug it.
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| lsintampa |
Feb 22 2016, 03:19 PM
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#6
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Senior Member Group: Members Posts: 520 Joined: 28-January 13 From: Tampa, FL Member No.: 15,441 Region Association: South East States |
QUOTE(Jeff Bowlsby @ Feb 22 2016, 04:05 PM) Do you have the CAT relay in the rear trunk? Unplug it. And that my friends is why Jeff get's paid the big bucks! (IMG:style_emoticons/default/cheer.gif) In redoing the dash, I thought to replace all the bulbs - the old CAT bulb must have been bad. Anyone need a know good CAT relay? Thanks Jeff! |
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| JeffBowlsby |
Feb 22 2016, 03:29 PM
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#7
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,963 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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I *think* what that signifies is that you still have an O2 sensor in the CAT, which has gone bad, hence the relay was alerting you to replace the sensor. You might find a plug for the O2 bung and just remove the relay, relay base and attached wiring. It all unplugs from the main chassis harness.
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| malcolm2 |
Feb 22 2016, 03:34 PM
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#8
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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I was able to find a metal gauge bezel for my 75. The metal ones come with NO holes for the emissions warning lights and they are not plastic! (IMG:style_emoticons/default/barf.gif)
Or you could tape up the back of the little holes and fill the front with epoxy or equiv. then paint. |
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| 914Sixer |
Feb 22 2016, 05:15 PM
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#9
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914 Guru Group: Members Posts: 9,179 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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California is the only state that had the two extra lights. All the rest of the 49 had plastic dash with no holes.
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