99 4runner engine dying while in park

[jdmsoarer]

I have a 99 4runner limited 3.4. I was having starting problems where i would turn the key and it would crank for a few seconds but did'nt start. When i would put the key on the second click for a few seconds before cranking, it seemed to always start. I was thinking fuel pressure regulator?? I did some searches and cleaned the maf and k&n filter and throttle body and it seems to be better.

Another problem that it did before the cleaning and now is when i have the ac on and car in park the idle gets really low and it dies. It has only done this about 3 times in the past month. any ideas. could the fuel pressure regulator be causing both these problems. Thanks for any input.

[spjonm3]

You need to clean your idle control valve as well. I had to clean both the NAF sensor and the ICV about every 25k when I had the TRD (aka K&N) filter on my '01 3.4l Tacoma. Here are some posts that I made over at TTORA

TTORA Forum - View Single Post - Idle problem
Starting Problems - TTORA Forum

Hope this helps

EDIT:

Here's another one..

My Runner turns off

[jdmsoarer]

Thanks mang ill try that tomorrow.

[jdmsoarer]

Thanks Jon,

i cleaned the maf and that idle control valve like you said. while i had the intake off i did the deckplate mod as well. Well so far it has started up great every time, hasnt stalled while in park and has more punch/acceleration. Thanks again

Ryan