Forum: C4 ZR-1 Technical Postings
01-18-2025
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Replies: 8
Views: 579
Re: Tire Cupping on the ZR1
You didn?t say where the cupping is, front or back.
The symptom is the cupping,
Usually the cause is something loose. If the back, could be someone tightened up the suspension in ?droop?.
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Forum: C4 ZR-1 Technical Postings
12-21-2024
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Replies: 11
Views: 3,035
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Forum: C4 ZR-1 Technical Postings
12-15-2024
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Replies: 11
Views: 3,035
Re: Stainless Braided Flex Lines
Mid-America has one pair left. Could probably get Earl?s on Gasoline Alley to make anything you want, they will need the OEM lines to duplicate the fittings.
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Forum: C4 ZR-1 Technical Postings
12-04-2024
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Replies: 17
Views: 2,165
Re: Anyone changed their injectors themselves?
Not that tough of a job, great advice already on this thread. I popped for the RC injectors and have never regretted it. Do plan to replace injector and fuel rail O-Rings. Understand the large...
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Forum: C4 ZR-1 Technical Postings
11-07-2024
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Replies: 23
Views: 5,835
Re: I think I?m in deep 💩
Try pulling the CTSY fuse, top left to reset VATS.
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Forum: C4 ZR-1 Technical Postings
09-24-2024
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Replies: 27
Views: 10,852
Re: Dreaded no start
Got me again two weeks ago, pulling CTSY fuse resets alarm and presto the car starts. Somehow triggering VATS with no audible alarm.
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Forum: C4 ZR-1 Technical Postings
09-19-2024
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Replies: 5
Views: 4,462
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Forum: C4 ZR-1 Technical Postings
09-17-2024
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Replies: 8
Views: 5,204
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Forum: C4 ZR-1 Technical Postings
09-17-2024
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Replies: 8
Views: 5,204
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Forum: C4 ZR-1 Technical Postings
09-04-2024
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Replies: 13
Views: 9,062
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Forum: C4 ZR-1 Technical Postings
09-04-2024
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Replies: 13
Views: 9,062
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Forum: C4 ZR-1 Technical Postings
08-19-2024
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Replies: 13
Views: 9,062
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Forum: C4 ZR-1 Technical Postings
07-13-2024
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Replies: 2
Views: 9,353
Re: How to reset FX3 cod eon 1994 ZR1
Sometimes the check at start up is a bit slow as the system looks for the shock actuators to fully cycle. When I start my 91, I turn the key on, but do not start it until the SRC light goes out.
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Forum: C4 ZR-1 Technical Postings
05-06-2024
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Replies: 24
Views: 17,237
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Forum: C4 ZR-1 Technical Postings
05-04-2024
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Replies: 24
Views: 17,237
A/C blower fan won?t turn off
Interesting information: my car is a May 91 build car and had the 92 Delco 16061602 control module, not the 91 GM 12368387 module. Also does not have the 5A AC fuse. Given I?ve owned the car for...
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Forum: C4 ZR-1 Technical Postings
04-28-2024
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Replies: 24
Views: 17,237
A/C blower fan won?t turn off
Same thing just happened to me yesterday when going to a car show-man those things are hard on the cars! What was the fix here? Just getting ready to dig in today.
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Forum: C4 ZR-1 Technical Postings
04-28-2024
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Replies: 11
Views: 22,679
Re: Tire pressure sensors
After a genius at Costco broke one two years ago when replacing the tires, I (Costco) bought a NOS on eBay. Didn?t work. Ended up duct taping the one they broke to the clamp - used the good stuff...
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Forum: C4 ZR-1 Technical Postings
04-24-2024
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Replies: 2
Views: 11,399
Re: HVAC control unit issues
I had the same problems several years ago. Pulled the unit, replaced the caps and reheated some cold looking solder connections. Has worked perfectly since - over 12 years. Remember to pull the...
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Forum: C4 ZR-1 General Postings
04-16-2024
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Replies: 6
Views: 2,627
Re: Registry shirt
Great job on the shirts, love the blue car!
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Forum: C4 ZR-1 Parts For Sale / Wanted
04-11-2024
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Replies: 6
Views: 3,072
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Forum: C4 ZR-1 Parts For Sale / Wanted
04-11-2024
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Replies: 6
Views: 3,072
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Forum: C4 ZR-1 Parts For Sale / Wanted
04-10-2024
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Replies: 6
Views: 3,072
Re: WTB: Silicone Air Intake Duct Coupler
I have a used blue one I?ll part with for $100 plus shipping. Slight pulley rash on one side.2036920370
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Forum: C4 ZR-1 Parts For Sale / Wanted
04-07-2024
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Replies: 10
Views: 7,221
Catalytic Converters for CA '91 ZR-1
Here are the 30k take offs from my 91. To be legal, $700 + shipping.20359203602036120362
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Sold!
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Forum: C4 ZR-1 Technical Postings
04-06-2024
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Replies: 5
Views: 4,617
Re: Best weatherstripping
When I replaced my hatch weatherstrip, I went with Corvette Central. Not sure who their supplier is, but they use a formed corner that moves the seam from the original location. Much better design,...
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Forum: C4 ZR-1 Parts For Sale / Wanted
04-06-2024
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Replies: 10
Views: 7,221
Re: Catalytic Converters for CA '91 ZR-1
Are they different on CA cars? I took mine off at around 30K miles and have them boxed.
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