ugh, this is my third set of injectors i am running (550cc) and for every set i've used somewhere at exactly 2000rpm in each gear the motor leans out and misfires. its pretty much annoyed me since i went turbo and a minor 320cc, but now its a real pain in the ass with these injectors. it just completely misses (20:1 afr) that 2000rpm beat.
heres the kicker it only happens with 5-40% throttle. anymore and it clears right out. so far i'm trying the additional injection map on the emanage to override the injectors but so far no good. and because i am have the emanage i can see the pulsewidth jumps from 1.2-1.6ms to .5ms at 2000rpms.
having gone through three sets of injectors, i know someone has to have the same problem here. so please speak up!
________________________________________________
...bone stock
maybe you have a bad tp sensor?Put a voltmeter on it and turn the throttle,if it goes up nice and smooth its good.If the voltage jumps around its bad.It should read 0.495v at idle and close to 5v wot.Good luck.
Peter
'06 Cobalt ss/sc W/G85 Package
Gm Stage II W/2.79" Pulley
K&N Drop In Filter
Custom Magnaflow Dual Exhaust
Listening........
275hp & 306tq - 1999 2.2 ohv
13.2 @ 108 mph
-1996 2.4 liter + Turbo + Built motor + Torco + More boost = Lots o' Power
-2000 Mustang GT + 2004 Cobra motor, Whipple 2.3 supercharger,
built rear-end,Dodge Viper spec T56 6 speed, bolt-ons = wheelies at the track!!!!!
nope its not the tps. that was causing me a few problems a month or so back, so thats replaced. actually looking at the emanage i see the full voltage range on it anyway.
on a side note, another problem... blip the throttle about 5-10% from a dead stop when the motor is idling, does it feel like its about to die? i see the same performance from the injectors dipping down into the .8ms or under. the motor goes from 1000 at idle to roughly 800 or less ready to die. but hit the throttle a bit quicker say over >10% throttle from a stop and it runs fine.
________________________________________________
...bone stock
hmm thats pretty weird, mine with the emanage just runs great until it warms up then all the sudden the inj pw drops right down until the car stalls... cant figure out was causes it, i unpluged my o2 sensor i runs awsome put a new o2 in and it still does the same thing. so im just driving it without an o2 with no problems.
but it kinda sounds similar since mine will just start pulling fuel out as soon as it gets to operating temp. and there is nothing i can do to stop it with the emanage
derek, thats ironic i just thought of that myself. i ran without the narrowband o2 hooked up to the pcm, and even though it ran pretty rich. it ran without a hitch. so at least this tells me it is NOT.... the injectors, the o2 sensor, or the emanage.
i think i am answering my own question here, but it MUST be a DTC with the pcm. i have too many CEL's to notice if this one is coming up. but i bet its that 2000rpm point is where the DTC will clear. my guess, its pulling a dtc every idle and clearing over 2000rpm.
in that case... no more narrowband o2 sensor.
________________________________________________
...bone stock
ya i have been driving without my o2 for quite a while now, runs awsome and having a wideband to moniter and tune it i realy dont need it anyway...
the only codes my car throws is the code for my o2 and map voltage low
02 simulator... you can plug mine in dave and see if that helps . What happened to you last night? Why did you guys keep going after you raced that Turbo Supra.
<img src="http://img.photobucket.com/albums/v292/dragmyz24/shoppedcav2.jpg">
Rush Racing
http://www.gettherush.com/
luke, that turbo supra gave me the time of day to keep running time and time again with it. i'm not willing to pass that up even though he was eating me up.
he was running 22-23 psi on a single turbo setup, on race gas and a AEM EMS (500-550whp)
i hung from 60-85... after that i was toast, even at 11psi!!
________________________________________________
...bone stock
being on topic, i unplugged the o2 sensor and the 2000rpm point has cleared up. but even on this emanage and afpr at 20psi, these injectors are running in the low 10:1 in cruise and missfiring badly.
on yet another side note i noticed an exhaust leak, which is most likely messing with the narrowband o2 sensor as well.
________________________________________________
...bone stock
geekd, what afpr do you have? most i have seen the lowest psi you can set is 30 - 35 psi.......the Accel one, umm
http://store.summitracing.com/default.asp?target=partdetail.asp?part=ACC-74565
there is a link
|Forged 8.9:1 Wiseco Pistons|Forged Eagle Rods|HPTuners|60trim|Tial Wastegate|
|Precision Intercooler|2.5" Exhaust|2.5" Charge Pipes|630CC Mototron Injectors|
|Stock: Fuel Pump, Transmission, Manifold, TB, Head, Head Gasket, Ignition, Suspension...|
an aeromotive afpr. i can go as low as 0 if thats what i wanted. i believe its was made for a 00 camero or so
________________________________________________
...bone stock
http://store.summitracing.com/default.asp?Ntt=aeromotive+afpr&Ntk=KeywordSearch&DDS=1&searchinresults=false&N=0&target=egnsearch.asp
i found this one, but it doesnt say afpr and im new to this so any other name it goes by equivalates to something completely different.
If this is what you have then why does it say 30-70? shouldnt it say 0-70? This is exactly what the Accel one says. 35-70. (PSI Range)
If this is not it, can you please link me? I would ask how much it is, but once i see the link i will know
Thanks
|Forged 8.9:1 Wiseco Pistons|Forged Eagle Rods|HPTuners|60trim|Tial Wastegate|
|Precision Intercooler|2.5" Exhaust|2.5" Charge Pipes|630CC Mototron Injectors|
|Stock: Fuel Pump, Transmission, Manifold, TB, Head, Head Gasket, Ignition, Suspension...|
yo geekd, shoot me an email about you selling your car, brtagood@earthlink.net
whats this?
hope that slips by.
________________________________________________
...bone stock
