PhatManBUD

I was looking at all the settings on my maps loaded on my power fc to try and see why mine was flooding and if you go to the InjTime screen it says certain x,000 rpms and a number ms and another number.

so mine goes something like:


INJ,TIME
6000 7.5 ms 2.X
5000 8.5 ms 2.X
4000 8 ms 2.X
3000 8.5 ms 2.X
2000 9 ms 2.X
1000 15 ms 3.0

I was wonderin if that jump to 15 at 1,000 rpm could be the flooding issue cause, why would it flood at idle...why is that jump so big and im guessing thats for the fuel injection vs. the timing. I mean lets say it pumps fuel at a different rate at 1000 rpm vs the timing is off wouldnt that cause it to flood out and eventually die after 15-20 seconds.

Im running 850 cc injectors. and So is my other friend and we looked at his power fc at his settings and for his 1,000 rpm it says 10 ms 3.0

I dunno, i could be totally way off in trying to read this thing. any input?

Thanks

RotorJoe

I run 550s and 1300s. But 15 looks like a big jump, although I have never messed with mine.

Mine are:

5000 7.5ms 1.0ms
4000 7.5ms 1.0ms
3000 7.5ms 1.5ms
2000 8.0ms 1.8ms
1000 6.0ms 2.0ms

Good Luck, My car is right out front and I can check other screens for you too.
Joe

PhatManBUD

ok cool thanks.hmm 15 does look like a big jump doesnt it, can anyone else look at your screens and let me know...it just doesnt seem right for such a far off point...i mean if it was like 7 8 9 12 that would be more reasonable then 15! i dont know what im talking about but the 15 just seems like such an usually placed number

PhatManBUD

anyone?

RotorJoe

Just try and lower the number a bit. If it still floods then change it back cause that may not be the issue. But if it helps then you may be on the right track.

PhatManBUD

its gotta be something in the timing i think...

RotorJoe

What is the timing when the car starts?

The PFC should read leading -5 and trailing -20 at idle under normal operating temps. Or very close, depends on if timing is locked for idle control on the PFC.

Do you have the datalogit?

Can you post your timing maps. I'll compare them with mine.

PhatManBUD

i dont have the datalogit, but my friend is comin over on sat with it hopefully if he comes through. i just wnat to be able to drive this thing, its been almost a year =\

PhatManBUD

well i drove it for like 3 days after i rebuilt it and put in twins i bought used...and the twins wouldnt boost! and they had lots of shaft play, what a buy =\

so now going single, hit another problem...sigh........

RotorJoe

Just a suggestion, don't bite my head off.

What about swapping another ECU in? But just to see if it starts and idles. Maybe your buddies PFC?

That would rule out anything with settings and ECU related.

PhatManBUD

haha im not yellin at you, thanks for helping, if you know anyone with pfc think you could ask them what theres is set at?

RotorJoe

Mainly that note was for others that will chime in and say "what the hell are you guys doing" type stuff.

I have a PFC and will look up whatever values you need.

Here are my mods:

RotorJoe

Oh, just re-read your last post. Sorry none of my buddies have a PFC in the car. I do run into a few at local meets, however that may take a bit.

TailHappy

I may be way off base but aren't you guys talking about the acceleration enrichment numbers? If so that would have nothing to do with the car apparently stalling after 15 seconds or whatever. The accel enrich is only how much extra fuel it gives the car when you press the gas quickly, to account for the sudden leanness from the butterflies opening before the map sensor can react.

With my 850 primaries, my car still leans out with quick throttle movement, even once I bumped up those low rpm numbers to about 30. Your tuner was probably just trying to help your throttle response at idle. But you can screw with the 1000-2000 ones and see if it helps. It's definitely not going to damage anything. You'll just get different throttle tip-in behavior.

RotorJoe

Yes we were and I had overlooked that. Good point.

I am still not sure what the whole story is and some of the other details that happened prior to this flooding problem.

I was just answering his questions and offering more thoughts.

Thanks
Good Luck

TailHappy

I wasn't clear on what the problem is either. There is also enrichenment by water temp, and cranking ms vs temp. Those might be more what he's after. Need more info...

PhatManBUD

All i really know is...mines flooding at idle...and on my pfc mines set to 15 ms 3.0 vs other peoples being set to 10 or lower.

TailHappy

The 15ms definitely wouldn't be affecting that. That's just a correction to help your throttle tip-in due to the 850's. So you're stalls at idle do to flooding? You might try taking some fuel out of the idle cells. As long as you deal ONLY with your idle cells, you'll be ok. As you pull fuel out, when you go too far, you'll notice the idle get rougher. That happens for me around 14:1 AFR. It should idle smoothly all the way down to 12:1, so you have plenty of room to play.

Like I say, theres other settings such as enrichening for cold water, if it only happens when the car's cold or warm but you really need to be looking at your air fuel ratios before messing with those settings since they affect your entire map.

PhatManBUD

So ive unflooded my car and crnaked it and it turned on a few times but it only stays on for about 30 seconds then dies.

I wanted to know that since my coolant lvl sensor wire was broken off right at the sensor so attempts to soder it back are futile.could that could cause it to flood? The coolant buzzer is constantly going off when the car is on the on position. i heard from somewhere that the coolant temp is related to the fuel put into the engine? could this cause the motor to flood from fuel. or maybe the coolant temp sensor on the back is busted and would that cause it to flood?

Also some say it could be the map sensor thinking that the car is at full boost so its dumping in fuel... how do i check if the map sensor is busted or not?