Many problems with my car maybe theyre conected

[JeanDSM]

I dont even know were to start.

Since while back ago my car i think always been having voltage power. i think his peak is at 13.2V when he was good, about two months ago its been around 12.3V about 2 weeks ago max is 11.5 and wheen i start the engine drops to 9V while starting and when car is on, jumps back to 11.0-11.3V

If i leave my car alone 2 consecutive nights whitout starting it, the battery dies

My car dosent starts about 2 weeks ago, one day he was running fine, the other day didnt started the next day started like a new car, the other day didnt wanted to start, things like that day after day.

One of those days that started didnt wanted to rev past 2Krpms just like having a maf sensor unplugged symptom, i chek and it was pluged, the Check engine light went on and says Air tem malfuncion and ar flow meter malfunction. I thought it was the GM translator setup fried, then i opened the box and both green and red LED's were off.

I went to a friends house to test my translator setup on his GST and everything worked fine. I wrote on the fullthrottle tech forums and they told me splice the two pink wires togheter cus looks like im having power problems. I did splice them together and even splice an aditional 12V power wire from my direct fan relay. again nothing happened,

If i connect the translator only the red light turns on, if i conect the gm the red light turns off,

The car dosent wants to start and it should, even with the translator and the sensor disconected. What should id be looking for?

I even bought a engine harness from another dsm fellow on ebay, He stole my money and never send the harness. I really need help

 

[97gstnick]

This sounds like your voltage regulator is shot. You need a new alternator man. Replace that and you should be good to go. Remember if you have real low voltage, everything starts to malfunction. Thats why you had those codes and such.

 

[BUCK]

This CLASSIC scenario usually involves leaky Power Steering Pump - dead Voltage Regulator & dying ECU - good luck

 

[JeanDSM]

This CLASSIC scenario usually involves leaky Power Steering Pump - dead Voltage Regulator & dying ECU - good luck

do power steering has to do anything with voltage problems?
No problem if its the alternator i have a life waranty on that but ohh please dont tell me my ecu is dying, is there something i can do to prevent my ecu with 4 months old DSMLInk chip from dying?

 

[allgripnoslip]

I think he means that the power steering pump leaks and it falls to what right under it, which would be your alternator. Very good point by BUCK, make sure if that is the problem you get that taken care of first otherwise it wouldn't make sense to replace the alt. first.

 

[DRated]

I concur. I just had a problem with my voltage regulator on my alternator. It had some fried diodes in there and it was just drain the power from my battery even when the car wasn't in use. Replace that alternator since its under warranty, then check back with us if that doesn't fix your problem.

 

[fourreGsixty3]

I would say if you can do a battery test, and a charging system test using a VAT Q45 do it, and that can help show you if the batery is the problem, alt. or a compination of both.

 

[JeanDSM]

my power steering pump aint leaking but im chaingin my alt tomorow, let see what happens

 

[spyderturbo007]

It could also be a leak where the water pipe connects to the water pump. Mine developed a small leak at the end of last year before I put it in storage. I probably drove around like that for about a month or so and was waiting until this year to do the timing belt and water pump. Anyway, over the winter apparently the antifreeze killed the alternator.

If you do replace the alternator, make sure you pick up some of the ratcheting wrenches for the job. It will make your life 1,000 times easier when you try to adjust the tension on the belt.