Problem i cant get to the bottom off.. collective thinking needed lol

[Toby@ToyTuning.com]

i know tobs.. its doing my fucking head in lol... yeah timing is spot on, we checked it 2 days ago & it is exactly 10deg tdc..

the funny bit is in all these years (6 to be precise) iv never come across this problem or ever heard of it happening to anybody with a starlet lol...

just my rotten luck lol..
kon

I haven't either, I wish I could help more but electronics are not my forte apart from the basics, what about your coil pack and ignitor?

 

[sx_turbo]

have you checked your air flow meter? just a thought?

there is no air flow meter on starlets

 

[HYBRID]

have you checked your air flow meter? just a thought?

we dont have an airflow meter on the 4e.. the map sensor is working fine.. will be checking the iat sensor later this wkend... maybe i can solve this...

kon

 

[Killamats]

its not your luck thats rotten, but your car has lol. 6 years in the heat/cold, never seen a roof on top of it lol

lol you now im joking i said this to you so many times lol. in my opinion, its the driver...i've been in this car so many times there is nothing wrong with it lol! your mechanic has said it a hundred times..its your head!:beer::beer:

 

[EP82]

there is no air flow meter on starlets

lol oops never knew that.

 

[HYBRID]

I haven't either, I wish I could help more but electronics are not my forte apart from the basics, what about your coil pack and ignitor?

im not sure it has anything to do with the ignition side of things tobs.. it just leans out randomly.. no misfires or loss of current etc.. it just cuts all the petrol out for some damn reason.. this is only till i hit boost.. as soon as i hit boost for the 1st time & get some decent egt's then the car works perfectly.. then as soon as i start normal driving.. the damn thing starts to lean out again...

waaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :shoot:

 

[HYBRID]

its not your luck thats rotten, but your car has lol. 6 years in the heat/cold, never seen a roof on top of it lol

lol you now im joking i said this to you so many times lol. in my opinion, its the driver...i've been in this car so many times there is nothing wrong with it lol! your mechanic has said it a hundred times..its your head!:beer::beer:

lol.. asshole lol.. both u & chris can say what u want lol... its me driving it & i know what its doing lol... even emma noticed the damn car isnt right lol.. now thats serious :haha:

 

[EP82]

at least its not the other way around and leaning out on boost!

Just drive on boost all the time lol

 

[GTti]

This is why you should have a propler ECU

I assume the car bogs down and then clears with a little throttle? Is it always when you hit 1psi or different variables? You think it could be cylinder(s) related, as in the condition is affecting one or more cylinders then clears up?

 

[HYBRID]

lol iv removed the emanaged & its running off the stock ecu..

this never happend before thats whats strange... yeah its kinda what u said luke.. it leans out badly.. then with a little throttle (& car hits boost) it kinda clears out.. but i need to keep the engine running pretty warm otherwise the problem re-appears... & it starts to lean out & like bog down ... even jerk sometimes depends how lean it gets.. this is all off boost on boost its fine..

kon

 

[EP82]

what you have to remember is if you have swapped back to a normal ECU and you still have modifications it will not be mapped right for the mods your running

 

[GTti]

I had an alternator problem that caused the car to get progressively lean as the voltage dropped. But this doesn't sound like your problem.

How lean are you talking about? I doubt the car would run much past 16:1.

If the mixture isn't igniting then I doubt the wideband would indicate lean, it'd be rich (I get rich AFR's on over run, this actuallys reads rich on the AEM), so that makes me think the problem might not be ignition related.

If timing was out or your cambelt slipped a tooth, then I would expect it to run rough over the entire range. There are alot of CB80 owners running 1 tooth out and never know!

What fuel pump do you use and what is your base fuel pressure? How old are the injectors? If it were injectors then I wouldn't expect them to jump into life at the same point each time.

Trying to use some logic... what else?

 

[HYBRID]

i do know that bud.. iv ran it before like this WITHOUT any problems.. the emu was there to add fuel not trim.. the injectors are pretty small & have run them without an ecu (before i had the emu) for a few years without ever having this problem.. so this problem is totally random..

kon

 

[Phil]

what you have to remember is if you have swapped back to a normal ECU and you still have modifications it will not be mapped right for the mods your running

think he's running 324cc injectors mate, and next to no boost. it shouldnt be lean.

Phil

 

[GTti]

what you have to remember is if you have swapped back to a normal ECU and you still have modifications it will not be mapped right for the mods your running

The stock ECU would be able to compensate enough to keep the car running under vaccum or low boost levels at reasonable AFR's.

 

[HYBRID]

I had an alternator problem that caused the car to get progressively lean as the voltage dropped. But this doesn't sound like your problem.

How lean are you talking about? I doubt the car would run much past 16:1.

If the mixture isn't igniting then I doubt the wideband would indicate lean, it'd be rich (I get rich AFR's on over run, this actuallys reads rich on the AEM), so that makes me think the problem might not be ignition related.

If timing was out or your cambelt slipped a tooth, then I would expect it to run rough over the entire range. There are alot of CB80 owners running 1 tooth out and never know!

What fuel pump do you use and what is your base fuel pressure? How old are the injectors? If it were injectors then I wouldn't expect them to jump into life at the same point each time.

Trying to use some logic... what else?

the lean im talking about is off the scale bud. it goes down to 18:1 then all i get on the aem is --- which means its off the scale..

same conclusion iv made... the aem is not logging any rich spots..

tming is spot on iv just checked it

my fuel pump is a supra 7m oem toyota one.. base fuel pressure is stock (2.3bar) for the moment as iv removed the sard regulator to make sure it wasnt the regulator playing up..

the injectors are a few years old but work perfectly & dont leak..ie they hold pressure for a few hours after the engine has been shut off..

thanks for the help luke
kon

 

[GTti]

And the car can still drive at --- ? I would of thought that was next to impossible on petrol?

I've seen mine go to 18, 19 then lean then --- and the car was long dead even on idle

I wouldn't of said the injectors were leaking, rather sticking and not opening and perhaps related to the fuel pressure behind them.

 

[speedfreaq]

what about the TPS would any damage here alter the fuel map
say maybe causing the computer to cut fuel thinking it on overrun ??

 

[Spoonz]

are u talking about the injector earth bud? cant think of any other earths there...

what was the case/symptoms on urs bro?

thanks
kon

Yea but the earth is also for the thermostat stuff aswell i think but basically it wud run lumpy and struggle to go anywhere then with some boost it would be alright then start to do it again.

Sunno if it is the problem just chucking the idea out there

 

[speedfreaq]

the grounds for all the sensors (TPS, CLT, AIR and MAP) are at the ecu

they are grounded directly in the ecu and nowhere else (E2 and E21) on the 26 pin plug of the ep82 ecu

i remember one of mine going bad and i was getting some bad readins from the sonsors for a while until i found out the wire at the ecu end had broken