Oct 29, 2018 · MAP pressure was not even close at key on, expected around 100, read as about 50. Found bad female at the ECU connector. So in your case, could be anything in the MAP …

Jun 8, 2024 · I'm running a Holley Terminator X Stealth 4150 EFI System 550-1006. Today I had another Holley EFI 554-107 3 Bar MAP sensor fail. That makes two in less than 1,000 miles. …

Jun 10, 2022 · I have a '03 5.3L LM7 running the Holley Dominator EFI. I'm trying to find the best setting for my MAP sensor: 09359409, in the MAP sensor settings. Any help would be great, …

Mar 6, 2021 · In the Sensors ICF, the MAP sensor should first be programmed/calibrated in kPa. MAP kPa is labeled on the left side of the Calibration Curve table (Sensors ICF). Then if you …

Jan 10, 2022 · Disconnect the MAP sensor, tie the signal wire to ground, key on, and note the MAP value. Should read low MAP value if signal & ground are good.

Oct 16, 2019 · Is the blue MAP Sensor Vacuum line on the Terminator X only used if you don't use the connector on the harness to plug into a MAP Sensor on an LS3 Engine?

Feb 2, 2020 · Sounds you have a bad MAP sensor. 1-bar MAP ends at about 103 kPa and 29" of vacuum is about 0 kPa. There is no rescaling. Easy to test, just draw a little vacuum on the …

Feb 18, 2021 · You need a MAP sensor, whether it's the internal Terminator X ECU 1 bar MAP sensor or the external wired one. It's Speed Density EFI, naturally aspirated or forced …

Jan 2, 2021 · Like instead of saying connect the 1 bar MAP sensor located on ECU, put a little more description, connect a vacuum line to blue line on bottom of ECU to a open vacuum port …

Apr 29, 2023 · If using the internal MAP sensor in the ECU, can the specific MAP sensor wires in the main harness be eliminated and/or the signal wire re-pinned to be used for an oil pressure …