Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Heavensheros]

of course lawl !!! didnt think it would come to bite me in the ass this hard

[Heavensheros]

got the timing all sorted out! dizzy was on backwards all fixed ... now my AFR is kind of strange ...

Idle at 14.9 and when i get up to high boost she leans out to 15 sometimes and kind of bounces around like the narrowband what seems to be the problem ?

[bhazard]

Weak pump? Bad filter?

[bryanknight]

dizzy was on backwards all fixed  when you say that whats that mean backwards?? 180 out? something wrong inside?? or ??

[Heavensheros]

i had to take it out and spin the insert 180 degrees and it will idle between 15 and 13 but when i boost it will sometimes be lean sometimes rich at 11 or 12 ... does the wideband have to be hooked up to the car computer or is it my tps never had this problem till now

[bryanknight]

o ok lol  and i am not sure on the air/fuel thing i dont have that and have not messed with it but i do know and have had many problems with the tps i have replaced it twice now.. this one seems to be working good but i cant keep the car running long to find out lol

[Rocketman]

You don't have narrowband emulation to the ECU???

Idle will bounce around between rich and lean slowly. The gauge will be sluggish upon startup as the sensor and engine warms up.

Cruising around the AFR will jump back and forth rich/lean sometimes very rapidly.

Under throttle it should be richish...the more throttle/boost the more rich it should be, never above 13 though

It bounces back and forth because the ECU can't read exact AFR with a narrowband, so it reads rich, sends lean fuel, sees lean, sends rich fuel, over and over. Cruising AFR's are not critical. Its called closed-loop mode where it listens to the 02 sensor for feedback

[Heavensheros]

as of right now and i might be wrong but in the stock bung on the exhaust manifold is the stock 02 narrow band sensor hooked up to the ecu and the wide band is on the bung on the vj-20 dump pipe with 2 open wires not connected to anything a blue wire and a white wire. i will read 11 afr in first gear under fool boost and in second gear she leans out to 15 + and will sometimes max out at 17.9 let off the throttle and it will be 15 afr. rinse repeat WOT full boost first gear 11.3 AFR second gear lean out and lose power and exhaust will sound different.

[Rocketman]

Check your manual. You'll see a lot better gas mileage and overall performance if you use the wideband to feed the ECU a signal. One of those wires will be narrowband emulation to hook into the ECU.

Did you mess with the TPS at all?
Did you set your timing with the light? Are you knocking w/ the controller pulling timing/fuel?

turn down the boost, what happens? Avoid running full boost with AFR's like that until the issue is sorted, its very dangerous for the engine.

[Gostlrs]

take notes everyone....

perform one mod at a time....  :cool:  

I am thinking there is something not set up correctly.

[Heavensheros]

i do have the boost down and i will see which one is narrowband emulation.

[Heavensheros]

fixed the wideband to run narrowband emulation to the car but now she still leans out on idle and boost when its warmed up give it full throttle and it will get rich and start to lean out again. This car is really starting to get under my nails... sometimes it will run perfect and sometimes it will run super lean and idle rough... when the car starts cold she runs good and idles good.... warms up and idles rough and leans out alot ... give it wot and it will get rich then lean out again. >.<

[Gostlrs]

rewire fuel pump

run it off the battery on a relay, the pump will get about 2-3 more volts and that will help you i think.

do you have a upgraded fuel pump?

read this same theory and can be used exactly the same. eclipse rewire kit is like 20 bucks for all you need and tell u what wire to put where on the relay. it helped my car a lot at boost

[Heavensheros]

ok i will do that !! that might help me out fuel pump might not be getting alot of power the batter moved to trunk possibly

[Rocketman]

Are all your temp sensors hooked up?

Did you mess it up when you painted the manifold...are the contacts painted over?