350Z400rwhp

iTrader: (4)

This is a continuation from a previous thread I started. A few weeks back I had a failure of my cog belt and it took out my "cam wire" and blew my ecu fuse. Tonight I replaced the plug and re-connected it to the sensor. My car idles rough when this wire is connected and idles smooth when it is disconnected. I went to Autozone to clear codes and they immediately came back when I restarted my engine (I believe it was a multiple cylinder misfire and a air/fuel code). Before I left I unplugged the connector and the engine runs smooth but of course my service light stays on. So now my situation is, I have repaired this damaged wire and when it's plugged in the car runs rough and when it is unplugged it runs smooth. Of course I need this wire to be plugged in so just leaving it unplugged is not an option. Sound like ecu damage? If I replace my ecu, will I need a re-tune? Could this cam sensor (or whatever it's called) be damaged? I have a friend who is a Nissan mechanic who I will hopefully talk with tomorrow but just trying to get some ideas in the meantime. This just makes me want to park this car in my garage and say Fu@k it!

0jiggy0

iTrader: (13)

If the fuse blew that means the wire grounded as it was cut. Its possible the sensor was taken out in that time.

350Z400rwhp

iTrader: (4)

I just pulled my computer out, loosened a few screws and peeked inside. There doesn't seem to be any physical damage nor any burnt electrical smell but I guess this still doesn't rule out the ecu completely. I will know more tomorrow after I talk with my friend but it does seem that the car runs fine until I plug in the sensor. I guess if the wire did ground out it could of taken out the sensor before it tripped the fuse. Not sure if this is good news or not.

tylerxfire

iTrader: (15)

good luck, off topic but i just changed my cog belt yesterday, how tight is ur belt?i feel my belt is much tighter than it was when i did the original install..

str8dum1

iTrader: (11)

well u already know what I had to do.. But you should be getting the IVT solenoid code. If you are not getting that, then something is wrong with your car.
you might need a touchup tune, but thats nothing you cant do yourself.

_ink

iTrader: (2)

Might seem obvious, but did you:

a) replace the fuse
b) reset the ecu

rx7/350z

iTrader: (6)

that fried my ecu and split second box when it happened to me. the ecu fuse is on the power supply to the ecu, their is no fuse on the cam sensor circuit. if it tripped the ecu fuse the short ran through the ecu to get there. mine wasnt burnt just stuck in a limp mode

rx7/350z

iTrader: (6)

make a steel plate to cover those wires for next time

350Z400rwhp

iTrader: (4)

I'm going to take my car to Autozone today and try looking at the codes again and write them down. I guess I will be looking for the IVT solenoid like Str8t said. Wouldn't my car run poorly if my ecu or my utec was fried (it isn't in any kind of limp mode)? It only runs a little rough when I hook up the sensor. My next step is to replace this cam sensor, any chance anyone has a spare set of heads they want to part out? I guess once I replace that it will rule out everything and I will need to address the ecu. Off to Autozone and I will report the exact codes.

rx7/350z

iTrader: (6)

good luck I hope for you thats all it is, but how it was explained to me when it happened to my car when those 2 wires touch it grounds out the ecu. having the fuse blow is a bad sign.

i only noticed that something was wrong about 20 minutes after driving the car. the ecu lost control of the cam timing and it felt like it was slightly missing around 4k-4.5k rpm.

350Z400rwhp

iTrader: (4)

I'm not doubting you, just trying to rule out any other possibilities before I replace the ecu as that is the most expensive.

350Z400rwhp

iTrader: (4)

Just got back from Autozone. The code it is giving is P1136 (Manufacturer Control Fuel Air Metering). Again it runs and idles fine until I hook up this cam sensor. Thinking my next step should be to open up my utec and look for any damage to the circuit board. If that looks good then I am going to replace this sensor and if it is still a problem I really don't know, guess I will have to replace my utec/ecu...... Any other thoughts?

Z_ology

iTrader: (44)

I don't think that you are on the right track. I sent you a pm also!

str8dum1

iTrader: (11)

1136 is the blown ECU code. 100% the same as me. sorry
https://my350z.com/forum/forced-indu...-now-what.html

Z_ology

iTrader: (44)

Yeah, what he said That is a code for the intake solenoid circuit. If you want to stop by, I can double check for you. But it doesn't look good.

350Z400rwhp

iTrader: (4)

Thanks guys, yeah it sounds like I'm fawkd. Just been hoping to get lucky but looks like I'm not. Nate I sent you back a pm, I'll stop by mid afternoon if that's cool with you. Thanks man!

- bigc -

iTrader: (18)

sorry to hear about this man. i hope you get everything sorted out ASAP!

350Z400rwhp

iTrader: (4)

Thanks. Well all Vortech guys out there please learn from my mistake and somehow protect these wires (like Str8dum did). I thought about doing it and never did and now I'm paying the price. It sucks to think of all the precautions I have taken with everything else and now a simple shredded belt has caused so much trouble.

rx7/350z

iTrader: (6)

i actually think this should be addressed by vortech. its their poor design that causes this problem.

str8dum1

iTrader: (11)

and vortech will say it was poor maintainence.....

I had some threads about finding the correct ECU. I think you just have to match the 2 digit code on there and thats all.. I honestly dont remember though and your dealer will be able to tell you.