Hello,
I have the strange problem with my IX.
Car wouldn't start on cold. after 1 minute crank it starts, but without maf. When I plug in maf it dies. Car works on E85.

If pour E85 in intake manifold, it starts on first run.

Does anyone have same problem or know why it happens?

 

Sorry... I need some clarification.

1. You're saying that the car won't start when it's cold (motor, or outside temperature?)
2. Are you trying to start it with, or without the MAF?
3. Is it ONLY starting without the MAF, or does it start with it plugged in as well, but after a long time?
4. Since you mentioned pouring E85 into your intake manifold, where are you pouring it in exactly? I'm assuming at the throttle plate? If that's the case, when you say you're disconnecting the MAF, are you actually pulling the wiring harness out, or are you just disconnecting the intake hose?
5. Is it throwing any codes?
6. What modifications do you have?
7. Lastly, what caused this? Did you do a recent modification, or did it just start doing it?

 

Clean the MAF.

 

Who tuned your car for e85?

 

Interesting. Subscribed.

 

1. You're saying that the car won't start when it's cold (motor, or outside temperature?)
When motos is cold.

2. Are you trying to start it with, or without the MAF?
It starts only without MAF.


3. Is it ONLY starting without the MAF, or does it start with it plugged in as well, but after a long time?
No, it doesn't start with plug in MAF.


4. Since you mentioned pouring E85 into your intake manifold, where are you pouring it in exactly? I'm assuming at the throttle plate? If that's the case, when you say you're disconnecting the MAF, are you actually pulling the wiring harness out, or are you just disconnecting the intake hose?
I opened throttle plate and poured E85 in, I have disconnected MAF wiring.


5. Is it throwing any codes?
No, It doesn't


6. What modifications do you have?
FP turbo (model don't know, when I bought it the number plate was removed.)1000CC injectors
walbro fuel Pump


7. Lastly, what caused this? Did you do a recent modification, or did it just start doing it?
I bought it as it is, on auction.


When water warms up car works fine on neutral, as i plug in MAF it deads in second.
I tried another MAF, but the result was same.

 

From my experience you need to clean the MAF and try again. Without the MAF connected it's in limp mode with a fixed substitute value which works most of the time with diminished performance (on most cars). Clean it ant try. Regards Dave.

 

Obviously the MAF being connected is the problem. It is probably dirty or needs replaced. Or just go SD. The cold start issue is most likely the tune with e-85.

 

1) Don't go SD. No need, even if you do have a messed up MAF.
2) It sounds like your car was tuned for SD the way you got it.
3) I know this may sound stupid, but was your car tuned for E85 and those injectors?

Honestly, since you did buy your car at auction, I will guess there are a lot of suspect mods done to your car that you should probaby have sorted out before you really use your car, let alone romp on it.

--STM

 

If car was tuned for SD, when plug in MAF should it die?
It's E85 in tank and in map when I got it.

 

Probably wouldn't run at all. Have you cleaned the MAF and tried again yet?

 

Yes I have, but the same ((
I changed MAF but nothing

 

Check the tune.

 

1000cc injectors really small for an e85 setup also...

 

Based on all of this, and what STM mentioned, I would take your car to a reputable tuner and have them look at your tune. It sounds like there's something going on with modifications rather than something being broken.

A good reputable tuner should be able to look it over, and let you know what the car has on it, mod wise, and tune wise, and what you need to do to run it safely, or what you need to do to get it running the way you'd like.

SD = Speed Density by the way, and STM is Street Tuned Motorsports... a reputable tuner in New York State. Not sure where you're located.