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Search: Posts Made By: purrvert
Showing results 1 to 25 of 371
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Forum: C5 Tech
12-28-2023, 02:36 AM
Replies: 18
Views: 520
Posted By purrvert

The 30/35 mph settings are always relevant. ...

The 30/35 mph settings are always relevant.
Cooling fans will run, both low and high speed, below 185F controlled by A/C pressure.
See HP TUNER and EFI LIVE inserts in above posts.
From 2000 FSM....
Forum: C5 Tech
12-26-2023, 03:55 AM
Replies: 18
Views: 520
Posted By purrvert

Negative. The 30mph setting re-enables fans after...

Negative. The 30mph setting re-enables fans after 35mph shutoff. Fans run from 0 to 35mph by eng temp settings where they shut off and when you slow down to 30mph fans are allowed to run.
Forum: C5 Tech
12-24-2023, 02:01 AM
Replies: 18
Views: 520
Posted By purrvert

Enable speed is 30mph Disable speed is 35mph ...

Enable speed is 30mph
Disable speed is 35mph
The 90 mph off exists in my EFI Live but is named 'Fan1 and Fan2 shutoff'. Not sure of it's function. Your temp settings are nowhere near normal....
Forum: C5 Tech
06-14-2023, 01:29 PM
Replies: 3
Views: 354
Posted By purrvert

P0480 Cooling Fan Relay 1 Control Circuit PCM...

P0480 Cooling Fan Relay 1 Control Circuit PCM Engine Controls, HVAC. Very likely no ground supplied to relay 45 by PCM.
Cooling fan #1 = both fans in low speed.
Cooling fan #2 = both fans in high...
Forum: C5 Tech
03-23-2023, 01:07 PM
Replies: 5
Views: 531
Posted By purrvert

Just a WAG. "The PCM calculates the amount of...

Just a WAG. "The PCM calculates the amount of airflow expected for a given RPM and throttle position, if these values are exceeded then C1514 will set."
When tuning my twin turbo the engine shut...
Forum: C5 Tech
03-11-2023, 12:12 PM
Replies: 1
Views: 253
Posted By purrvert

According to Summit Racing that p/n is a valve...

According to Summit Racing that p/n is a valve cover grommet used in big block GM engines from '66 to '69.
Forum: C5 Tech
12-24-2022, 01:27 PM
Replies: 28
Views: 1,799
Posted By purrvert

From my 2000 manual. To match transmitters...

From my 2000 manual.

To match transmitters to your vehicle:

1. Turn the ignition key to ON.

2. Clear any warning messages on the Driver

Information Center (DIC) by pressing the
Forum: C5 Tech
10-15-2022, 11:00 PM
Replies: 11
Views: 771
Posted By purrvert

https://cimg5.ibsrv.net/gimg/www.corvetteforum.com...

https://cimg5.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/563x750/vacuum_tank_bak_pcm_passasjer_side_1cd7f539387c4ef4d265757db92d3e1f478dc33a_848339fdfefb3199898bda148436d3983fce9d12.jpg
Hope...
Forum: C5 Tech
08-26-2022, 12:50 PM
Replies: 6
Views: 320
Posted By purrvert

Your horn needs to sound four times. PM...

Your horn needs to sound four times.


PM Sensor Programming

The Tire Pressure Monitor (TPM) system interfaces with the Instrument Panel Cluster (IPC) through the serial data line. Once the...
Forum: C5 Tech
08-26-2022, 12:19 PM
Replies: 6
Views: 320
Posted By purrvert

From the owners manual. "As soon as the...

From the owners manual.

"As soon as the receiver learns the first sensor code, all previously stored codes are erased from the receivers memory."

All four sensors need to be programed in order...
Forum: C5 Tech
08-23-2022, 10:49 AM
Replies: 19
Views: 2,193
Posted By purrvert

From owners manual J 41760 = strong magnet,...

From owners manual

J 41760 = strong magnet, preferably donut shaped.

I they are Schrader EZ-sensors 33500 (315/433 MHZ) they may need to be programmed prior to installation. youtube search.
...
Forum: C5 Tech
08-20-2022, 08:24 AM
Replies: 2
Views: 227
Posted By purrvert

Very likely a vacuum issue, possibly coming from...

Very likely a vacuum issue, possibly coming from a leaky battery.
Forum: C5 Tech
08-11-2022, 08:31 PM
Replies: 21
Views: 16,168
Posted By purrvert

If your average 20 minute drive is over 35mph...

If your average 20 minute drive is over 35mph check for blockage of airflow through condenser and radiator. If under 35mph make sure the fans are operating correctly. There is a high pressure clutch...
Forum: C5 Tech
08-06-2022, 11:48 AM
Replies: 36
Views: 1,591
Posted By purrvert

Just noticed misprint on schematic lower left...

Just noticed misprint on schematic lower left corner, the ground supplied by PCM to relays 43 and 44 should be labeled "high speed"
Once again relay 45 needs to stay energized when relays 43 and 44...
Forum: C5 Tech
08-06-2022, 11:33 AM
Replies: 36
Views: 1,591
Posted By purrvert

Right hand fan high speed is fully controlled by...

Right hand fan high speed is fully controlled by relay 43, fan has its own permanent ground.
Forum: C5 Tech
08-06-2022, 12:40 AM
Replies: 36
Views: 1,591
Posted By purrvert

https://cimg8.ibsrv.net/gimg/www.corvetteforum.com...

https://cimg8.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/818x975/c5_fan_relay_eaefc08b62f1ab1ae67bda83469d93809418880c.jpg
Same problem I had. Open ground wire from relay 44 socket pin 87 to...
Forum: C5 Tech
07-30-2022, 01:02 PM
Replies: 10
Views: 658
Posted By purrvert

From your original post your temps are fine above...

From your original post your temps are fine above 35mph, that would prove your system is clean enough and functional. That leaves only your fans in question, suggest you recheck operation. Drivers...
Forum: C5 Tech
07-10-2022, 02:33 PM
Replies: 2
Views: 340
Posted By purrvert

cooling fans

https://cimg2.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/2000x1504/img_3040_ebc524238ed9548f2280a0f0c83076f5de052ee8.jpg
For the non-believers. From 2000 FSM.
Quote from first paragraph. "The...
Forum: C5 Tech
07-10-2022, 01:36 PM
Replies: 8
Views: 722
Posted By purrvert

I believe you are looking at diagram of fuse box...

I believe you are looking at diagram of fuse box located in passenger side foot well, thats where cigarette lighter fuses are.
Forum: C5 Tech
07-05-2022, 05:02 AM
Replies: 36
Views: 1,591
Posted By purrvert

Sequence of events are at low temp relay 45...

Sequence of events are at low temp relay 45 energizes supplying power through pin 87 to drivers side motor then through unenergized relay 44 pin 87A to passenger motor which is permanently grounded....
Forum: C5 Tech
12-08-2021, 02:01 PM
Replies: 4
Views: 570
Posted By purrvert

The cooling fans should run on low speed with...

The cooling fans should run on low speed with engine off/no key but only for one second or one minute if temp sensor reports 284 deg., its called Run-on Temp. I would be more concerned if fans don't...
Forum: C5 Tech
11-24-2021, 12:09 PM
Replies: 22
Views: 1,562
Posted By purrvert

https://cimg4.ibsrv.net/gimg/www.corvetteforum.com...

https://cimg4.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/1168x1606/cooling_fans_1_bc9d05f6faaba10792192636b07beab92391c81f.jpeg
fan #1 = both fans low speed
fan #2 = both fans high speed
Forum: C5 Tech
10-30-2021, 10:25 AM
Replies: 4
Views: 542
Posted By purrvert

Push and hold Reset to clear TPMS message and see...

Push and hold Reset to clear TPMS message and see if button functions work.
Forum: C5 Tech
10-15-2021, 12:12 PM
Replies: 12
Views: 778
Posted By purrvert

My Kooks installed from top. Today they install...

My Kooks installed from top. Today they install from bottom. The difference being having a lift.
Forum: C5 Tech
10-14-2021, 01:43 PM
Replies: 10
Views: 548
Posted By purrvert

Just a guess, had same backfire problem minus the...

Just a guess, had same backfire problem minus the bad gas after changing plugs, turned out to be a cracked spark-plug insulator.
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