I'm in need of some help. I tried to install a remote start on my mom's car for her and left her car much worse off than when I started.
IC Dynamics Remote Starter Model RS160A
I've connected the wires circled in the attached picture.
The most significant of these connections are the starter, accessories, power, and ignition connections I've made at the ignition harness as well as the tach input which was made with the ignition coil output signal from the ECU (harness B134 red and yellow wire on pin 25).
All of my connections were made by stripping away the stock wire's insulation and soldering in the new wires. The intention was that the car could still work if I removed the remote starter because the new wires wouldn't lead anywhere and no stock wires were cut.
Even with the remote starter unplugged from it's wires, the car doesn't run well.
I have a flashing CEL before even cranking the engine over.
I can hear relays clicking away and fans turning on when the key is in the ignition position but the engines not yet cranked.
If the engine is cranked, it becomes very unbalanced after about 30 seconds of being on
Most of those don't make sense as they are related to vehicle speed sensors or auto neutral switch sensor. One is related to the starter circuit. I checked the resistance across my soldered connections at the ignition harness and all were good.
I don't know where to look next. The connections I've made shouldn't be recognized by the car with the remote start module plugged in. They should just be wire leads off of already existing wires.