Ok my car is still running lean and making a popping noise. The following have been replaced to see if it could fix it but obviously nothing has;

Bosch o2 Sensor
New Puel Pump Sending Unit
New Walbro 255lph Fuel Pump with new filter (my old filter was black)
New Spark Plugs
300zx Fuel Filter
Swapped ECU's with Mr.Gone's spare ECU (will send it back Monday) Thanks!


Eric93se suggested that it might be the o-rings on the fuel injectors or possibly the fuel injectors themselves in my last thread. I have no time to be working on my car so I have my close friend (mechanic) working on my car while I am at work and dealing with school. Eric if possible refresh me on exactly what I should tell my mechanic. Everyone else if you have any suggestion as to what I should have inspected to possibly cure my problem please feel free to suggest guys. I hate not having my car and driving the family 1992 Honda Accord beater sucks the fat one! All suggestions are welcomed and appreciated.

Thanks,
Diego

 

Have you checked the fuel pressure? The regulator might be bad.

You could also have a bad MAF sensor. Swap it with a buddy if you can to see if that fixes your problem.

 

uhoh diegos car is catching the bugs, who in the LI crew is left to get them?
jk

in regards to the maf, he did run into that problem already last spring/summer. But who knows.. since all of those above listed parts have been replaced, maybe it isnt a bad idea to inspect the maf again. if you want i can swap mine in to see if thats the fix

otherwise,

*waits for eric to chime in*

 

Yea if after the next repairs the problem isn't fixed I am going to ask one of you guys to come down and let me swap MAF's.