2003 Maxima Stalls after start up
#1
2003 Maxima Stalls after start up
Hi,
I'm new here and I'm hoping you guys can help. I bought a 2003 maxima se automatic last month and it had issues running. I have replaced the fuel pump, fuel regulator, new throttle body with Iacv, new map sensor, new throttle position sensor, new ecm (new to me), new keys, new nat and had them programmed, new spark plugs and caps, and replaced leaking injectors. I made sure the electric motor mounts were unplugged before I replaced all this stuff thanks to this site. The car still won't run. It turns over but idle drops and car dies. It does not matter if I put on the gas or not it still dies. I have no check engine lights. Please help if you can.
I'm new here and I'm hoping you guys can help. I bought a 2003 maxima se automatic last month and it had issues running. I have replaced the fuel pump, fuel regulator, new throttle body with Iacv, new map sensor, new throttle position sensor, new ecm (new to me), new keys, new nat and had them programmed, new spark plugs and caps, and replaced leaking injectors. I made sure the electric motor mounts were unplugged before I replaced all this stuff thanks to this site. The car still won't run. It turns over but idle drops and car dies. It does not matter if I put on the gas or not it still dies. I have no check engine lights. Please help if you can.
#3
You had this problem before you replaced everything listed? I encountered this problem and it was the camshaft position sensor., bank 1 or 2 I don't remember. Also a good idea to scan for codes and see if there are any even if the light isn't on. And for this sensor go OEM.
#4
#5
You had this problem before you replaced everything listed? I encountered this problem and it was the camshaft position sensor., bank 1 or 2 I don't remember. Also a good idea to scan for codes and see if there are any even if the light isn't on. And for this sensor go OEM.
#7
#8
This looks like a bad MAF. Check it out - clean or replace.
A bad MAF usually does not throw a code, so it's hard to diagnose.
Edit: The car should run with the MAF disconnected. If it doesn't, then the problem is something else.
A bad MAF usually does not throw a code, so it's hard to diagnose.
Edit: The car should run with the MAF disconnected. If it doesn't, then the problem is something else.
Last edited by maxiiiboy; 02-24-2021 at 11:38 PM.
#9
![+1](https://maxima.org/forums/images/smilies/+1.gif)
#10
car still won't run. I am at my whits end. I might have to suck it up and take it to a shop.
#11
![+1](https://maxima.org/forums/images/smilies/+1.gif)
#14
#17
They can go bad but it's not an overly common issue. When they fail, the car will drive but never go above 3k RPM. Hitachi is a good replacement brand and the car is pretty finicky for good brands, like the coils.
#18
Just to update. It turned out to be a faulty fuel pump. It was new but aftermarket. Guess it didn't pump enough because it did work. Shop purchased oem one, installed it, and car fired up.
Thanks for all the help
![bonk](https://maxima.org/forums/images/smilies/bonk.gif)
#19
My MAF went bad when I reoiled my K&N filter. I was able to diagnose it by unhooking it, with the MAF unhooked it wouldn't rev past around 3,000 rpm and would stall right out when cranked up. . as for your issue, I would suggest anything that could leak in the intake system such as brake booster hose, PCV hoses, vacuum lines, throttle, and throttle body hose. even pulling off the oil cap while the engine is running will cause it to stall, that' how sensitive cars with a MAF sensor are to leaks in the intake system.
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