multiple problems on 2g gsx 6bolt NEED HELP !

[nadsy]

wassup DSM ppolz!
ok, i have a small list of problems that i dont know how to approach.....

my AEM a/f ratio guage sticks in one spot (14.4) all the time,
what is broken on it and how do i fix it?

my idle stays at 1200rpms and i cant lower it! .. i replaced my ISC motor and tweeked my BISS but still high idle... ( my BISS is almost closed completely!)

i pulled codes for my check engine light and they are P0100 and P0135 .... what needs to be done about that?..

my gas tank needle stops at half even when full......

car runs SO RICH i can only do about 80miles on 15gallons of 91octane!! wtf is up with that!?!?!

AND finally i have a small coolant leak from my water pump.... im asuming its best to replace to whole pump and gasket and might as well change the belts around there too..... but i dont know how to do this!

im very new to cars in general , AND this is my 1st dsm so i may need a specific walkthrough xD
THX in advance DSMers!!


-- Car Specs --
6bolt engine (runs great)
greddy type-s BOV (flutters a bit)
greddy FMIC with 2'' piping
550cc injectors
injen intake pipe
"dnr" exhaust manifold
knock off evoIII 16g turbo from ebay ( just found out yesterday it was an ebay turbo.. man im pissed!! , BUT its not giving me any problems, kicks in at 3500rpms and no leaks or smoke from it and holds 16psi well..)
3" apexi turbo exhaust with cat,downpipe,and big ass muffler
Apexi Safc
basic working boost gauge
wideband a/f ratio gauge (stuck at 14.4 as listed above)

i wil provide ANY pics/vids that are requested .....

like i said im new to cars AND dsms... ive been learning alot lately but im still a newb.... HELP ME BECOME A STEP ABOVE NEWB AND MAYBE A TRUE DSMER SOON!!!

 

[hoyboi]

the p0135 code is for a bad o2 sensor which could be the problem to your 14.4 air to fuel ratio and the 80 miles on 15 gallons of gas and the reason it idles a lil high. i hope this helps and good luck

 

[nadsy]

the p0135 code is for a bad o2 sensor which could be the problem to your 14.4 air to fuel ratio and the 80 miles on 15 gallons of gas and the reason it idles a lil high. i hope this helps and good luck

thx man! im going to replace them BOTH asap! xD

 

[90moneypit]

There is a TON of information on this site and also on VFAQ Site - Visual Frequently Answered Questions concerning general maintenance and diagnosis of problems on a DSM. If you want to be a 'true' DSM'r, you might want to look through them both. On this site it's under the Frequently Answered Questions section but don't limit yourself to just that. Read any posts that catch your attention and keep your eyes and ears open to different problems that have similar symptoms. On your side, I suggest buying both a good voltmeter (and learn how to use it if you don't already), and a good set of tools with extra 10mm, 14mm, and 17mm sockets and wrenches. Those aren't the only size used but they are the ones used most frequently. Read up!

 

[olmytsi]

Don't bother replacing the rear o2 sensor, it doesn't do anything really.

Looks like you need to take the car apart and go over all the little things like the water pump leak.

Also, cross your finger that you don't get random misfire, it SUX...search for it on here if you are not familiar so you don't freak out when it happens

 

[hoyboi]

yea as olmytsi said dont even bother with the rear o2 sensor it dont do anything that would cause an issue

 

[asrdave]

i know the p0100 is your maf circuit so check the connections to it, since your o2 sensor code is up you will get really crappy afr's so make sure the problem is the sensor

 

[hisandherturbo]

I had the same fault recently, and thought the MAF and O2 were bad......... ended up being, base timing was off and injectors needed dialing in........ before you spend money...... look at them things.

JOE

 

[hoyboi]

hey man let me know when you fine anything else out or if you fixed it

 

[nadsy]

well i changed my MAF sensor and my car is running alot smoother... i can smash on it with no problems reaching high rpms! as for the rest of my problems i am yet to attend to ><