350z bad ecu symptoms

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Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. As I made my way onto the off ramp my Z suddenly lost all throttle response, SEL came on slip light came on, and no matter how much gas I gave it, the rpm's never made it above

350z bad ecu symptoms

Thread Tools. Helping a customer to trouble shoot a VQ swapped Spec V.. I've never had a ECU go bad, but I think that's what we've narrowed it down to. Here's the symptoms and what we've tested: Car died suddenly at highway speed was raining heavily No spark at all Can smell fuel while cranking Fuel pump primes ECCS relay is working: - power at coils, injectors, MAF, crank and cam sensors All fuses check out No codes Replaced crank sensor with new one from Nissan The fact that he is getting 12 volts switched to all of the sensors, tells me that it's not the ECCS relay. The fact that the pump primes, and he smells fuel while cranking tells me that the injectors are working. No spark with good voltage and ground means that it pretty much has to be the ECU. Anyone else ever have a ECU go bad? View Public Profile. Send a private message to TurboS13Hatch. Visit TurboS13Hatch's homepage! View iTrader Profile. Sounds to me like electrical fault.

This can be advantageous since you can determine the exact cause of failure. Since the ECM controls your air to fuel ratio and transmission, a faulty unit can cause your gas mileage to drop through the floor. The following errors occurred with your submission.

When conditions change, the ECM will automatically make adjustments in real-time. That is why it is so important to recognize the symptoms of ECM failure. The ECM controls a number of systems, but the most important ones for our purposes are the air to fuel ratio, the engine timing. It also controls the transmission in automatic transmission vehicles, and valve timing on vehicles with variable valve timing. This is superior to old, mechanical systems, where you had to adjust the carburetor from time to time or have the engine timing tuned.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. The gauge reads around PSI before the car is even started, and reads above the max of PSI when it is operating.

350z bad ecu symptoms

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. As I made my way onto the off ramp my Z suddenly lost all throttle response, SEL came on slip light came on, and no matter how much gas I gave it, the rpm's never made it above Of course I was freaked out, first thing I thought was the ECU finally made up it's mind to take a dump because of the exhaust mods I added. I then shut the car off sat there for a few minutes and started it up again.

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Now as soon as my warranty is up, plenum and ECU reflash here we come :clap:. Anyone else ever have a ECU go bad? Visit TurboS13Hatch's homepage! Formula 1 Follies. I then shut the car off sat there for a few minutes and started it up again. Sorry you had an issue but it's nice to hear the dealership is responding favorably. Installing a new starter can also cause ECM failure. Introducing Infinite Scroll - Click here to learn more! I think rhis caused my problems. So i was fixing it up and i have to boost the battery, the engine ran fine after crash, and only ran without filter. But so far so good.

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Since the ECM controls your air to fuel ratio and transmission, a faulty unit can cause your gas mileage to drop through the floor. MAF was connected. Help please! Thread Tools. Likes: 5. The same thing can happen if you get your wires crossed while jumping your car. Related Posts. Looks like we roll this weekend :shiftdrive: So The only way to be sure is to visit a mechanic with the proper computer. Bad transmission bearing?