1G starts then dies, running out of ideas.... FIXED :) IT RUNS

[thechuckster]

i just mean it's weird that there's been a rash of cars with stuck injectors .

[TheToyman75]

i just mean it's weird that there's been a rash of cars with stuck injectors .

Actually stuck injectors are very common in any engine that is left sit for a long period of time. Its worse when the injectors have been cleaned and serviced as the solution used to clean them is more prone to causeing them stick than pump fuel.

[Stefan]

These injectors are the bigger ones (green?) I received with the kit, not the ones that had been sitting in my Gen2 for a few years. I don't believe they were sitting for long but I will certainly check that they work.

[TheToyman75]

Did the car that had the Adaptronic on it have these same green injectors in it ???

If it was using the stock Yellow gen 2 injectors chances are that your problem !

[brett_celicacoupe]

Did the car that had the Adaptronic on it have these same green injectors in it ???

If it was using the stock Yellow gen 2 injectors chances are that your problem !

that would make it overfuel by around 10% (yellows are 280cc?) which would help it start on a cold tassy day.


have you tried manually feeding it fuel to see if it stays running??

i managed to keep a 1JZ halfcut running for a minute by squirting fuel into the TB out of a tomato sauce bottle.

if you can keep your engine running then its obvious there is a lack of juice

[Grega]

have you tried manually feeding it fuel to see if it stays running??

yes. thats how i diagnosed my faulty injectors.
get a can of aerostart and start it and spray that into the plenum

if it keeps going, injectors are the problem

[thechuckster]

wilbo & I found that a functioning injector makes a significantly louder sound (click) than one that's stuck. Identify an inj that's working, note the sound it makes, then listen to all the others one at a time.

[Cuts]

ive had problems with injectors myself. (not in the 205, in the work hack camira)

i had them cleaned but they sat for a month or two before i put them in, car would start and fire occasionally, so i pulled the rail out and yeh only one of the squirters were fireing. so i put the old ones back in haha, ill soak them in juice and put them back...one day...

[Stefan]

Well, some progress.

The engine will keep running beautifully so long as you keep squirting Start Ya Bastard into the throttle body. So either injectors are bung (they must be working somewhat to get engine to run at all though, right?) or the ecu isn't triggering them right.

[o_man_ra23]

You all missed something vital in the log. MAT is Mass Air Temp. Yours shows blank the whole way through, which would indicate it not to be hooked up. Check to see if your tune is relying on this signal at all. I still think it has to do with temp sensors... though being you are in TAS and your WT shows 16 degC, I think the water temp is reading correct (unless you were doing that in the middle of the day)

You are overfuelling the motor, hence why it is a bastard to start after a successful attempt, and also hence why you can smell fuel from the exhaust. The air temp sensor sits between the intercooler and throttlebody, and should be as close as possible to the throttlebody. It should be an open element type sensor, and they can be picked up quite cheap... around $30 or so. I paid $13US for a sensor with waterproof pigtail and steel bung, postage was bundled with my adaptronic and wideband oxy sensor though.

If your injectors were sticking, your plugs would be dry after a start, and your exhaust would not smell like fuel (unless they were stuck open, but you would notice a bad reik of fuel all the time)

I do hope this info helps, please look closely at your tune and what sensors it is searching for.

[RObErT_RaTh]

Well, some progress.

The engine will keep running beautifully so long as you keep squirting Start Ya Bastard into the throttle body.

Exactly the same stuff we had to use to start my mates car after it had work done at a paint shop and hadn't gone for a proper drive just idling when they move it around occasionally. We had to remove and clean all the plugs and then use start ya bastard and even then it was a little bit of a struggle. Once running it was blowing a far amount of black smoke as we burned off all the excess fuel.

[Stefan]

I does - I have confirmed that setup does not use air temp. The water temp readings seem right for when they were done, yeah.

It does smell of fuel all the time, but I think you are on the right track - it's either stuck injectros, or bad data to ecu...

[TheToyman75]

The cold start injector, if connected will supply enough fuel to get the engine to think about running.

The question in my previous post still stands.


Brett, its not the size difference thats important, its the high current verse low current thats a problem. If the ecu is configured to fire the wrong resistance injectors it won't be happy.

[TheToyman75]

I does - I have confirmed that setup does not use air temp. The water temp readings seem right for when they were done, yeah.

It does smell of fuel all the time, but I think you are on the right track - it's either stuck injectros, or bad data to ecu...

Just as a side note - Anything forced induction that doesn't reference air temp is way dodgy !!!

[o_man_ra23]

here here Rod. The air temp fluctuations experienced when compressing gas are rediculous, and your tune won't be worth a pinch of shit if it can't compensate.