MSP Running Real Rich?

[MSPM1cheLe]

What are YOUR wideband readings?

UPDATED: see post #21
hoping someone can relate to this problem.

my car runs crazy rich like if i am cruising and put it in nuetral for a light or something, or blip the gas at idle my AF ratio is stuck at like 8.5 for about 4-7 seconds until it finally even back out to 14.7 area. Sometimes it will get so flooded with fuel it'll die. and then if its cold at start up its so lean that it will turn over, but then immediately die. I think the leanness is happening bc we messed with the MAF input reading via my greddy emanage ultimate to try and balance out how rich is was running, so at start up its just too lean to hold an idle with the first try.

i am hoping my o2 sensor is just bad and its not reading to the ECU right, but I won't know that til i swap it out. Which I plan on doing today, hopefully.

anyone else have this problem, or can suggest maybe something else that might be wrong?

 

[speed1016]

Wow! what AFR guage do you have thats telling you 8.5? Cause Im having the same issue lately. Where the car drives great but on cold start ups really rough idol and dies. Got me

 

[MSPM1cheLe]

Wow! what AFR guage do you have thats telling you 8.5? Cause Im having the same issue lately. Where the car drives great but on cold start ups really rough idol and dies. Got me

sorry should've included that info i have the Innovate LC-1 Wideband with XD-16 gauge kit.

http://www.innovatemotorsports.com/xcart/product.php?productid=16164&cat=262&page=1

 

[speed1016]

thats really nice!

 

[MSPM1cheLe]

thats really nice!

lol yes. it one of the bset widebands out there. now if only i could get my car to run right, i would really be enjoying it. ever since i put it in, it showing me how crappy the car runs. lol

 

[KrayzieFox]

Where do you have the wideband sensor? In the j-pipe?

 

[MSPM1cheLe]

Where do you have the wideband sensor? In the j-pipe?

Yes.

 

[MSPM1cheLe]

swapped the o2's/ didnt do anything. but look at how mine looked when i took it out:

can anyone give me some guidance here?! going to try cleaning the MAF sensor tomorrow :\

 

[JDM Sam]

Take the Greddy out and if it stabilizes problem solved.

 

[Deatschwerks]

You might check your injectors, might have one thats not pulsing correctly, possible leaker.
Are you running a 255 or stock?

 

[MSPM1cheLe]

You might check your injectors, might have one thats not pulsing correctly, possible leaker.
Are you running a 255 or stock?

stock.

Take the Greddy out and if it stabilizes problem solved.

tried that. did nothing.

 

[Deatschwerks]

if you have another stock MAF, or can borrow one just to see if it might be a MAF issue.
Dont overthink it though, it might be something really simple

 

[MSPM1cheLe]

if you have another stock MAF, or can borrow one just to see if it might be a MAF issue.
Dont overthink it though, it might be something really simple

yeah i was thinking that too. i took mine off it looks fine. gunna take some electronics cleaner to it, maybe that'll help? (dunno)

 

[dandan2]

have ur stock intake manifold? cause i have the 626 mani and my car does the same thing! its been like that ever since ive owned it and the only thing that fixed it was the maf relocation but i cannot do that now because of my unichip

 

[JDM Sam]

borrow someone's MAF and coolant temp sensor.

 

[Cypher02xd]

any cels?

 

[JDM Sam]

test using a noid light and test the injector firing on the harness. check the fuel pressure regulator solenoid. also is your voltage steady around 14v?

 

[MSPM1cheLe]

any cels?

negative

borrow someone's MAF and coolant temp sensor.

test using a noid light and test the injector firing on the harness. check the fuel pressure regulator solenoid. also is your voltage steady around 14v?

will do.

have ur stock intake manifold? cause i have the 626 mani and my car does the same thing! its been like that ever since ive owned it and the only thing that fixed it was the maf relocation but i cannot do that now because of my unichip

yes stock intake manifold :[

 

[Deatschwerks]

You ever figure out what it was?

 

[MSPM1cheLe]

You ever figure out what it was?

no still trying.