Forum: C4 ZR-1 General Postings
4 Weeks Ago
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Replies: 6
Views: 3,398
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Forum: C4 ZR-1 General Postings
4 Weeks Ago
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Replies: 6
Views: 3,398
Re: Vacuum line replacement
Thanks!
I was just on Jerry's and ordered some gaskets. The reason I posted this is because I couldn't find the vacuum lines. I guess I just missed it. I'll go back and look. Thanks!
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Forum: C4 ZR-1 General Postings
4 Weeks Ago
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Replies: 6
Views: 3,398
Vacuum line replacement
Gentlemen,
Where do you find vacuum line and rubber couplers for the 90ZR1? I have a couple of broken lines that need to be replaced. Thanks in advance.
Peter
90 #659
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Forum: C4 ZR-1 General Postings
01-14-2025
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Replies: 7
Views: 574
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Forum: C4 ZR-1 General Postings
01-13-2025
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Replies: 7
Views: 574
Re: Morning Start Up Engine Noise
Thanks. I'll check it. Not related but I'm replacing the coil packs and plugs. It will be a good time to take a thorough look. Thanks again. l always appreciate the help on the Registry.
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Forum: C4 ZR-1 General Postings
01-13-2025
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Replies: 7
Views: 574
Morning Start Up Engine Noise
I'm used to the usual sounds when the engine starts before the oil circulates but what I am familiar with now includes something like a high pitched screech. It's only for a moment and only after...
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Forum: C4 ZR-1 Technical Postings
06-16-2021
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Replies: 6
Views: 1,085
Re: Vacuum Pump Problem
Resolution: I purchased a used 1990 ZR1 vacuum pump I found on Ebay, identical to mine. Plugged everything in and the pump works as designed. Turn the key on, it runs for a few seconds (good vacuum),...
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Forum: C4 ZR-1 Technical Postings
06-02-2021
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Replies: 6
Views: 1,085
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Forum: C4 ZR-1 Technical Postings
06-01-2021
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Replies: 6
Views: 1,085
Re: Vacuum Pump Problem
Thanks Ken for your reply.
I did check the line after I initiated the thread and the line looks good. I plugged the outlet port on the pump and could not get it to stop.
It would be great to...
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Forum: C4 ZR-1 Technical Postings
06-01-2021
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Replies: 6
Views: 1,085
Vacuum Pump Problem
1990 #659
Gentlemen,
If I disconnect the first vacuum line connector near the alternator, and put my thumb over the line from the pump closing it off, shouldn't the pump stop running? This ...
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Forum: C4 ZR-1 Technical Postings
10-31-2020
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Replies: 39
Views: 9,069
HEADLIGHT UPGRADE
Gentlemen,
What do you recommend for a headlight replacement for my 90'? I don't want to make any modifications to the original wiring. I would also like to see as far down the road as possible...
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Forum: C4 ZR-1 Technical Postings
05-12-2020
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Replies: 3
Views: 1,198
Re: Ground points under the MAP sensor
Paul, thank you for your very helpful post. I just cleaned up the negative battery cable ground to the frame and so far no codes. I'm also going to get into the ground bundles as you suggested.
...
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Forum: C4 ZR-1 Technical Postings
05-07-2020
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Replies: 3
Views: 1,198
Ground points under the MAP sensor
Gentlemen, what do you suggest is the best way to access the ground points attached under MAP sensor? My car has been running great but the SYS warning flashes intermittently throwing the C41 code....
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Forum: C4 ZR-1 Technical Postings
01-23-2020
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Replies: 17
Views: 2,629
Re: SYS flashing
Gentlemen,
I have hesitated to say I have sorted out the issue and the car is running reliably, but I think I figured out the problem. I was sure the alternator and battery were good, which they...
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Forum: C4 ZR-1 Technical Postings
09-26-2019
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Replies: 17
Views: 2,629
Re: SYS flashing
Paul, the first problem I had with the car in the Spring of 2016 was a cracked barrel on the crankshaft sensor. Interesting you mentioned that in your post.
Time has not allowed me to pursue the...
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Forum: C4 ZR-1 Technical Postings
09-25-2019
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Replies: 17
Views: 2,629
Re: SYS flashing
Thanks, Gentlemen, for the replies.
Disconnected the negative and pulled the prom. Everything was very clean. After reassembling, all the codes were clear and I drove the car all afternoon in N VA...
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Forum: C4 ZR-1 Technical Postings
09-23-2019
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Replies: 17
Views: 2,629
Re: SYS flashing
Checked the battery and Alternator:
Battery 12.39V
Alternator 14V
What's next?
On Sunday afternoon, all the codes were clear and my son and I went for a ride. Later that evening, the SYS...
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Forum: C4 ZR-1 Technical Postings
09-20-2019
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Replies: 17
Views: 2,629
Re: SYS flashing
SYS flashes
C41 code — intermittent
4. ERR — intermittent
Sometimes the Select Ride light comes on on the dash and then goes away. (I remember something important running through the selective...
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Forum: C4 ZR-1 Technical Postings
09-18-2019
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Replies: 17
Views: 2,629
Re: SYS flashing
Charlie and Marty, Will make every effort to make it. You’re right, that gathering of experienced owners would be invaluable help.
Thanks again!
Petet
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Forum: C4 ZR-1 Technical Postings
09-17-2019
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Replies: 17
Views: 2,629
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Forum: C4 ZR-1 Technical Postings
09-17-2019
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Replies: 17
Views: 2,629
Re: SYS flashing
Marty, Thanks for the reply. I drive the car every day but not far or for more than 30mins before it conks out. Battery is new. Any help would be appreciated.
Thanks!
Peter
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Forum: C4 ZR-1 Technical Postings
09-17-2019
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Replies: 17
Views: 2,629
SYS flashing
Without the engine running, when I put the key in the ignition the SYS flashes on the dash. Starts right up, flashing the SYS, strongly runs for an undetermined amount of time and stalls. Throws the...
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Forum: C4 ZR-1 Technical Postings
03-31-2019
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Replies: 11
Views: 2,733
Re: Extremely High Idle
Thanks Richard. I’m not discounting a leaking vacuum hose but I’ve been through the vacuum system making sure the connections were secure. I was looking into replacing the prom. Thanks for the...
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Forum: C4 ZR-1 Technical Postings
03-29-2019
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Replies: 2
Views: 873
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Forum: C4 ZR-1 Technical Postings
03-28-2019
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Replies: 2
Views: 873
Intermittent Stalling Problem
I have a problem with the car stalling. The engine starts chugging and then stops. I turn the key to on but not start and the fans run for two or three seconds, the fans stop, I hear a click and the...
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