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The bypass kit we recommend for most customers! If you don't want to splice or tap into your factory harness these kits are for you!
The Hewitt-Tech Plug and Play Combo Kit includes the SAIS Bypass Plug and Play Module and a SAIS Pump Proxy Pack. Click on the images for more details!
This Plug In version of the SAIS Bypass kit offers all the same features and benefits of the Hewitt-Tech Wired Version but with super quick and labor saving Plug and Play Installation. All wiring connections except the starter relay connection are accomplished by the Plug and Play harness. Like the wired version, these kits prevent operation of the secondary air injection system at cold start. By preventing the SAIS from operating many of the trouble codes, CEL and Limp mode that are associated with a SAIS failure will not return once cleared. The Plug and Play Harness provides a very clean factory looking installation that allows for the bypass module to still be hidden out of plain sight.
The SAIS Pump Proxy Pack is an Add-On to our popular SAIS Bypass Kits. Normally our SAIS Bypass Kits can’t clear a P0418 or P0419 but now they can with the additional installation of a Pump Proxy Pack. The other option for clearing a P0418/P0419 code after installing a SAIS Bypass kit is to replace the SAIS Air Injection Pump with a new and expensive unit. Detailed and illustrated Installation Instructions are easy to follow and include all details for each component of the Bypass Kit. That is a particularly expensive repair if you have to pay for the labor on a 4.7L engine where the Air Injection Pump is located under the intake manifold. Installing a Pump Proxypack is much less expensive that having to replace an air injection pump and you can just leave the old faulty unit in place.
Here are the Common Trouble codes that this Bypass Kit Combo can eliminate: 1441, P1442, P1444, P1445, P2440, P2441, P2442, P2443, P2445*, P2447, P0418 or P0419
*On some 05-06 4.7L vehicles there is a known Cold Weather glitch in the ECM. This glitch can occur when operating the vehicle in near freezing or below freezing temps. If the P2445 code comes on and puts you into limp mode in cold weather while you are driving and reach 45-50mph this is a glitch in the ECM and not an instance of P2445 that the kit can prevent.
For more information on trouble codes that Can and Cannot be cleared with the bypass kit alone... Please check our Trouble Codes Section.
The bypass module is activated when the ignition is first switched to "ON" and any time it detects a 4-12V signal on the starter relay wire. The starter relay option is only available on the Hewitt-Tech SAIS Bypass Modules! This option, when connected, ensures that the module actively prevents the SAIS from running on EVERY start. With the starter relay wire connected you can turn the ignition to "ON" for any period of time and the module will be active as soon as you crank the engine. Without the starter relay wire connection, you would need to turn the ignition back "Off" and then crank the vehicle to ensure the module is active or the system could operate and cause trouble codes and the CEL to come back on. Just install the kit with the starter relay wire connection and don't worry about having to start the engine as soon as you turn the key on! If anyone else drives the vehicle this is a Must!
The included No.2 Exhaust Valve Block-off Plates are an integral part of the bypass kit (images may not match the plates you receive for your specific engine). The block off plates are the only way to isolate the exhaust valves and the related pressure sensor(s) from the exhaust. By completely isolating the system from the exhaust the pressure sensors are prevented from causing valve stuck open trouble codes which are the main cause of limp mode when this system fails. Even though a system is bypass and should never run again, the Exhaust No.2 valves can still leak exhaust and cause future trouble. Installing the block off plates is the only way to prevent future valve trouble and limp mode. Again, it is just best to install and forget about it.
The SAIS Pump ProxyPack is an Add-On to our popular SAIS Bypass Kits. Normally our SAIS Bypass Kits can’t clear a P0418 or P0419 but now they can with the additional installation of a Pump ProxyPack. The other option for clearing a P0418/P0419 code after installing a SAIS Bypass kit is to replace the SAIS Air Injection Pump with a new and expensive unit. That is a particularly expensive repair if you have to pay for the labor on a 4.7L engine where the Air Injection Pump is located under the intake manifold. Installing a Pump Proxypack is much less expensive that having to replace an air injection pump and you can just leave the old faulty unit in place.
A SAIS Bypass Kit must be installed to use a Pump ProxyPack.
These packs install at the SAIS Air Pump Driver that is located on the driver's side inner fender well. There is no need to remove or replace the bad air injection pump when installing one of these packs.
The engines with smaller displacement than the 4.7L have only one air pump that can cause a P0418. Depending on year, the 4.7L engine can have one or two air pumps. A P0419 is only possible if you have a second air injection pump. The 5.7L engines all have 2 air injection pumps. For those vehicles with 2 air injection pumps, both air pump drivers will be located back to back on the inner driver’s fender. The Bank 1 Air Pump Driver (P0418) is located towards the rear of the vehicle and the Bank 2 Air Pump Driver (P0419 is located towards the front of the vehicle.
One SAIS Pump Proxy Pack is needed for each code i.e. if you have a P0418 and a P0419 you would need to install one pack on each Air Pump Driver.
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