ENGINE ELECTRONICS AND WIRING
The Vodoo, Engine electronics and wiring. What makes or breaks any project. In the past most Standalones where plug and play, with minor wiring. Now and days more Jumper harnesses are used. This allows for universal Standalones to be adapted to many cars. That make great sense for those that are looking for a quick install, but it leaves many things open that make standalones complete engine management systems(EMS).
Safety strategies are implemented In to just about every modern EMS. Things like Pressure transducers for fuel and oil, are two of the main sensors needed for an EMS to make the required corrections in case of an oil system failure or if your fuel system is up to par... The next sensor in line is the o2 sensor. It can make corrections on the fly depending on your settings of up to ~20%. Standalones like the Infinity EMS, have build in wideband controllers. This makes it easier to setup and have excellent o2 sensor feedback like OEM ECM's.
All these sensors have to be tied into to EMS in order to make these changes, and most Jumper harnesses need to have these sensors wired in. This is when we step in. We offer a full options engine wiring harness to allow a 100% trouble free install. Add the sensors needed and all of the sensors like fuel pressure, oil pressure and flex fuel are already wired up to the correct pins. All your tuner has to do is enable them. This isn't always the case. We have sold many complete systems and when the client wants us to check the installation via Team viewer and we discover some heart breaking things.
Our harnesses are for the most part plug and play. We use only Japanese connectors and pins. We also use high grade wire in our basic looms and locally source Milspec wire for the high end looms we offer. Overall, wiring is something we only buy from the US. all of our wiring follows toyota color coordination and markings. Our shielded cable (used for cam and crank signals and knock sensors) has the lowest signal loss observed by most reputable tuners in the market. Every loom is hand built to order from scratch. We make very little splices in the system. for the most part we use junctions boxes like OEM toyota harnesses used in the late 90's to power up and ground the entire engine harness. This ensures that power wires and grounds all run back in to the car, in order to minimize the exposure to the elements in the engine bay. So zero breaks in the wire length from ecu to sensor. If it doesn't work, the wire has been compromised or we screwed up in the making of the Loom... ( we are human, mistakes happen! LOL ) We test the loom for issues prior to shipping so we make every effort possible to deliver a 100% working loom.
Most of our looms are used in street cars, but we also use the same loom and style in competition cars. Formula D US and Formula D Japan series driver Andrew Gray Has now used our harness for two years. This year he managed to take the championship for a third year in a row.
The same type of harness used in a championship level car and same processes used to make it, also go into building your harness in a street car. We don't have "levels" of build quality to increase or decrease pricing. Same Japanese sourced parts are used on all looms.
This is a picture of a Harness being prepped for shipping. This perticullar loom is going into a race chassis. It will have labeled unterminated wires at the body side to help the final installer identify what each wire is for. also all of our crucial sensors are labeled including the coils and injectors for easy install.
This is a picture of a harness that was ship to us for inspection and to retrofit a new ecu connector. After an inspection we found all the plugs to be made by a company in china, This loom has never ran an engine, but the injector plugs are already broken :( so much for great quality... The plug on the left is a Sumitomo plug. the one on the right is a chinese replica of the first generation version of this plug. it also uses pins that are also not used currently by Toyota as the found that the new version is far superior.
Here is that beauty of a connector again...
This is our Jumper box. This is where you will find your power wires coming into the cabin of the car. The great part of this is that it allows for a fused 12v switched power source in the car for additional gauges. Our harnesses that are made for the AEM Infinity EMS already have the AEMnet connector built in. All you have to do is add the AEM net gauge or BTi gauge of your choice...
The engine loom on this fine example was also made by us. Real Milspec used. with all the right Boots and wire. The coveted fire wall plug was used as well, this isn't necessary as many of us are not going to be removing an engine and replacing it in under 15 minutes. if time is of the essence, the second engine would have an engine harness preinstalled already to allow a quick and easy install. Cost of making a true Milspec harness will cost two to three times the cost of our basic harness. reputable shops and companies charge roughly the same price that we do, because planing the loom takes time, and making it takes time. contra-wind and layout takes a lot of time. this also takes more wire to make, and the cost of wire is higher for Milspec wire. So in short... Can we do Milspec? yes, Do we recommend it? yes, but not for everyone.
IF you have made it this far... We are running a sale on our most popular harness/ECU combinations... use code NOVLOOM at check out to save some moola on our harnesses... Thanks for your business and support...
Hey I have a 95 sc300 and I want to go 1jz vvti can you make a harness for that?