wont start

[Shoemjay]

Yesterday i went to install new IAC which was successful, when i started it barely start, when it did it idled terrible, so i gave a few revs and i guess it adjusted. still didnt sound normal so i put on my 55maf and put my chip to it 55maf setting, started fine but still a funky offset idle.
So i went a step further and took the chip out and put the 55 maf and put my old coil pack which worked fine instead new(accel pack) just want make sure getting spark.
started fine i went and drove it and took off fine but once you get to 4k maybe a little before starts to sound bad(burp) so i would ease off the gas and drive home normal.
When i got home and turned it off, to check the fuel pressure w/pump primed and was 39lb(good) and then went to start SHO to check running pressure and NOW WONT START AT ALL. NO CODES.
now im lost lol car ran but now wont start at all lol. CPS maybe but what about the poor running condition plus the off idle when it did start, it didnt sound good like it normally sounds.
ANyone got IDEAs??

 

[Ocnaj]

Since you said it won't start with no codes, CPS is out of the question since it will throw a code.

What was it doing before you installed the new IAC? Did it run fine with the old one?

 

[Shoemjay]

while driving if i were to put it in nuetral the rpms go up and down but randomly. and its not the MAF just replaced. and i was also having lots of hesitation in first gear at low rpms with bad trottle response.

I went outside about twenty minutes after posting thread and car magically started and idled but still not good and when reved it , it was delayed. I turned it off and then wont start again lol.

 

[Ocnaj]

Some of the symptoms sound like a Cam Sensor. I would check your codes even if you don't have a check engine light just to make sure.

 

[Shoemjay]

thanks for posting ocnaj, i checked codes and havent got one yet, I figured since the car isnt starting after running for a couple min, i feel that has to be a CPS, but i will check this afternoon for codes after i start it.
i know will start cold but wont crank after i turn off. i already order cps 65.$ autozone wonder why so much cheaper then shosource? im gana see how much for cam sensor while im already in there AGAIN, might as well change it.