03-30-2020, 11:49 AM | #15 |
Drives: 2016 Camaro SS Join Date: Sep 2018
Location: Bartlett, TN
Posts: 1,121
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03-30-2020, 11:52 AM | #16 | |
Drives: 2019 1LE/ss 2014 ss/rs summit white Join Date: May 2016
Location: Charlotte
Posts: 131
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Quote:
Yes the lt4 pump number hasn’t changed from 18 to 19-20 zl1. It’s the lt1 on the 19 that changed from the electrical. Even the dealership shows that the pumps completely changed on the lt1 and the lt4 stayed the same. So for the last time the lt4 pump I have is the correct pump. If you can’t be of help and not dealt with it don’t respond. Possibly someone else has a fix due to there not being a different lt4 plug with out cutting up a harness. And the current fix I am working on is getting the entire lt4 rh side fuel injector harness.
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2019 ss/1LE d1x, LT4 fuel System, Triple meth nozzle, ported BTR, 2” Texas speed headers, Built 377 SPDC motor, CTporting heads, TooHighPsi port system, SMG aux.
1014/800 on E55/meth 890/750 on 93/meth Working on tuning the port system for full e. With questions just message me here for a faster response. https://www.facebook.com/eric.willia...ibextid=LQQJ4d |
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03-30-2020, 11:56 AM | #17 |
Drives: 2019 1LE/ss 2014 ss/rs summit white Join Date: May 2016
Location: Charlotte
Posts: 131
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Should be to read the psi of the high side.
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2019 ss/1LE d1x, LT4 fuel System, Triple meth nozzle, ported BTR, 2” Texas speed headers, Built 377 SPDC motor, CTporting heads, TooHighPsi port system, SMG aux.
1014/800 on E55/meth 890/750 on 93/meth Working on tuning the port system for full e. With questions just message me here for a faster response. https://www.facebook.com/eric.willia...ibextid=LQQJ4d |
03-30-2020, 11:56 AM | #18 |
Drives: 2016 Camaro SS Join Date: Sep 2018
Location: Bartlett, TN
Posts: 1,121
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Maybe they changed the pumps on the 19+ cars and the LT4 pump is no longer a direct swap.
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03-30-2020, 12:49 PM | #19 |
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,316
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AFAIK, that connector is either a PSI sensor, or a variable relief valve. Probably the latter, but I don't know. I'm just going by tables available in the scanner and there is a PSI input and there is a demand table for the HPFP.
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03-30-2020, 01:07 PM | #20 | |
Drives: 2019 1LE/ss 2014 ss/rs summit white Join Date: May 2016
Location: Charlotte
Posts: 131
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Quote:
Yeah seems to just be a sensor and I just want to be safe and have the right wire harness for it.
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2019 ss/1LE d1x, LT4 fuel System, Triple meth nozzle, ported BTR, 2” Texas speed headers, Built 377 SPDC motor, CTporting heads, TooHighPsi port system, SMG aux.
1014/800 on E55/meth 890/750 on 93/meth Working on tuning the port system for full e. With questions just message me here for a faster response. https://www.facebook.com/eric.willia...ibextid=LQQJ4d |
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03-30-2020, 02:07 PM | #21 |
Drives: 2017 Camaro SS 1LE Join Date: Apr 2019
Location: Chicago burbs
Posts: 36
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Here's what I just took off a 2020 ZL1. Same part #. Different pump than what you have. Did you check the number on the the pump vs. the box?
Attachment 1025556 Attachment 1025557 |
03-30-2020, 02:40 PM | #22 | |
Drives: 2019 1LE/ss 2014 ss/rs summit white Join Date: May 2016
Location: Charlotte
Posts: 131
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Quote:
The first picture is my old pump and the second picture is the lt4 pump already installed in the car. The lt4 pump is the same as the one you posted.
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2019 ss/1LE d1x, LT4 fuel System, Triple meth nozzle, ported BTR, 2” Texas speed headers, Built 377 SPDC motor, CTporting heads, TooHighPsi port system, SMG aux.
1014/800 on E55/meth 890/750 on 93/meth Working on tuning the port system for full e. With questions just message me here for a faster response. https://www.facebook.com/eric.willia...ibextid=LQQJ4d |
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03-30-2020, 03:07 PM | #23 | |
Drives: 2017 Camaro SS 1LE Join Date: Apr 2019
Location: Chicago burbs
Posts: 36
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Quote:
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03-30-2020, 04:56 PM | #24 |
Drives: 2019 1LE/ss 2014 ss/rs summit white Join Date: May 2016
Location: Charlotte
Posts: 131
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But yeah that’s what I mean I the connectors are different. I did just order the harness off the zl1 so hopefully that works. Ik it will plug into the pump but more of if it will plug into the main engine harness
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2019 ss/1LE d1x, LT4 fuel System, Triple meth nozzle, ported BTR, 2” Texas speed headers, Built 377 SPDC motor, CTporting heads, TooHighPsi port system, SMG aux.
1014/800 on E55/meth 890/750 on 93/meth Working on tuning the port system for full e. With questions just message me here for a faster response. https://www.facebook.com/eric.willia...ibextid=LQQJ4d |
03-31-2020, 10:05 AM | #25 |
Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016
Location: Norman, OK
Posts: 2,424
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While the pump is mechnical, the electrical sensor has to be plugged in for the pump to work otherwise it could go into bypass mode. The sensor provides the PSI which the ECM needs to know, but it can also open the bypass ports if the pressure is to high.
My guess is GM change the LT1 connectors and the LT4 connectors to keep people from being able to plug and plug the LT4 HPFP into a LT1 vehicle. So my guess if that is the case that either a adapter harness will be needed or the sensor on the HPFP will need to be swapped over.
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03-31-2020, 10:32 AM | #26 | |
Drives: 2019 1LE/ss 2014 ss/rs summit white Join Date: May 2016
Location: Charlotte
Posts: 131
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Quote:
Harness 12689504 will be a direct swap for harnesses for anyone with a 2019 trying to upgrade the hpfp to the lt4 pump.
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2019 ss/1LE d1x, LT4 fuel System, Triple meth nozzle, ported BTR, 2” Texas speed headers, Built 377 SPDC motor, CTporting heads, TooHighPsi port system, SMG aux.
1014/800 on E55/meth 890/750 on 93/meth Working on tuning the port system for full e. With questions just message me here for a faster response. https://www.facebook.com/eric.willia...ibextid=LQQJ4d Last edited by s3rics213; 04-03-2020 at 05:16 PM. |
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04-03-2020, 05:19 PM | #27 |
Drives: 2019 1LE/ss 2014 ss/rs summit white Join Date: May 2016
Location: Charlotte
Posts: 131
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Update
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2019 ss/1LE d1x, LT4 fuel System, Triple meth nozzle, ported BTR, 2” Texas speed headers, Built 377 SPDC motor, CTporting heads, TooHighPsi port system, SMG aux.
1014/800 on E55/meth 890/750 on 93/meth Working on tuning the port system for full e. With questions just message me here for a faster response. https://www.facebook.com/eric.willia...ibextid=LQQJ4d |
08-14-2020, 12:04 AM | #28 |
Instagram: @SSAVAGEVERT
Drives: 2016 SS M6 Vert Join Date: Jan 2016
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