lukel03

Original Post The camaro is now running great and I'm updating the original post.
What I did (in chronological order):

1. Changed fuel filter twice ($40)
2. Changed spark plugs ($35)
3. Checked all relays and fuses with volt meter (computer was shutting voltage off after .5 second)
4. Changed fuel pump ($110)
5. Cleaned all grounds, including the main ground. (there is a GM recall on the main ground)
6. Changed MAF sensor/meter. ($150 - seemed to be the culprit)


Three hundred dollars later and car runs like new. The mass air meter was sticking at 2 lb. and my car was pretty much running off of correction from the o2 sensor when it was working. So, the computer was shutting off to prevent damage to the engine. Put a new sensor in and the computer was showing 20ish lb. at idle and then going up to 35ish when revving it up. The mass air flow sensor is very easy to change and I would recommend checking it with a diagnostic to see if it is running properly if your car is hesitating like mine was.


Similar post with same problem:
https://www.camaroz28.com/forums/sho...d.php?t=796549

lukel03

Just found this guys post. I forgot to say that I am getting a MAF code.
https://www.camaroz28.com/forums/sho...ight=fuel+pump

I'm just not hearing my fuel pump turn on like I used to when I turn the key.

If I do replace the pump will the TRE-340C 255 LPH or Walbro GSL392 work on a v6 3.8L?

lukel03

I'm not too sure if I even know what a relay is. I may have just bought the fuse for it.

lukel03

I could really use a little advice. I think I'm going to take off the MAF tomorrow and clean it for good measure. The fuel pressure tester is the only thing I can do to see if my fuel pump is gone?

chevy_dude97

if it is anything like the v8s it will have a fuel pump prime wire under the hood. if you apply 12v you should hear the pump and get pressure to the fuel rail. If not your pump is dead.

chevy_dude97

also if u doo change it check this out --->https://www.camaroz28.com/forums/sho...d.php?t=619463

lukel03

Thanks for the response. I'll try that in the morning.

lukel03

Awesome link. Thank you for the info. I've seen a few youtube videos showing the trap door method and I believe that I will use it because I heard you have to take your exhaust and rear axle off to drop the tank.

chevy_dude97

yeah I did this method and it took no more then 2.5 hours and most of that was prepping to make sure I didn't get any metal or paint inside the car.

chevy_dude97

Here is a link to my pics of the t
rap door. It was a typical swap as per the sticky.
https://picasaweb.google.com/Jessie....eat=directlink

lukel03

We ran the fuel pressure tester on the maro today and it had 22 psi. The car will not start. We pulled the pump out of the car via the trap door method. I really hope it's what is wrong. We are replacing it with an walbro or airtex tomorrow.

lukel03

I"m looking at these three pumps. Which one should I use and does it really matter for a v6 3.8L Stock Camaro.

http://www.summitracing.com/parts/VPN-GSS341/

http://www.summitracing.com/parts/VPN-GSL392/

http://www.summitracing.com/parts/GRN-GM722-2/

Need4Camaro

The first one will work fine, be aware that it will require some slight modifications...

lukel03

Thx for your reply. I ended up ordering a TRE Performance one because it had more information tha summit on what the pump could be used for. I also like the fact that it comes with the replacement tubing and socks. Ended up going with:

http://treperformance.com/i-63693-ch...1993-2002.html


I've taken pictures of our trap door on a 2000 Camaro and the pump location is a little bit different than the ones that I have seen. I'll post them soon.

ramosj88

Luke, I'm having the same problem with my 88'.
Same symptoms and I checked the fuel filter and it was able to send fuel. My engine is the TPI 5.0 though. I checked the fuel rail and pressed on the "tire nozzle" looking thing to see if pressure was building but there wasn't or very little.
I'll keep you posted if I find anything out cause I need my Z up and running ASAP...you do the same please.

I find it hard to believe it would be the fuel pump on mine cause I already replaced two of them since I had it; but I do have the original engine and everything else at 180,000 miles.