Wont idle, car hits 1000, then dies.

[mikehutch711]

I have no clue why, the idle has been getting progressivly worse over time, and now it just wont idle.Any ideas?

[boost_boy]

Make sure you have all the sensor plugs hooked-up correctly! Do a ecu analysis to see if it gives you any codes.

Dee

[mikehutch711]

any idea what sensors i should check?

[boost_boy]

You could've crossed the water temperature sensor plug with the AAC plug. The cold start valve (the little gray funny looking thing below the t-body) could be bad or it's plug could be crossed with something. These are just possibilities and may not pertain to you, however, you need to do a diagnostic scan on the ecu which has also been covered on this forum within the past month.

Dee

[mikehutch711]

Well the car was running perfectly before.Rafic did my install for me, very clean install too.I didnt have this problem till about 2 weeks ago where my car would struggle to idle, now it just doesnt.

edit * I cant seem to find the thead on diagnotics, could someone please link me if they know what one it is?

[mikehutch711]

Well i think ive narrowed the problem down to the Air Regulator.I took off all hoses and checked them from the acc back, and the car will idle up until i connect up the Air regulator.Any idea why it the regulator would go bad? Its on EF&EC 12 in the ca18det manual

[boost_boy]

Quote »Any idea why it the regulator would go bad?[/quote] Simple, it's old!

Dee

[mikehutch711]

could i get a direct replacement from ca16de pulsar?

[boost_boy]

No, they are not the same as the DET. Try one off the KA24 series or Maximas or something to that effect.

Dee

[mikehutch711]

I checked the plusar manual and the det fsm and they look identical.Also I checked ka24de manual and im sure it does the same thing, its just in a different shape and wouldnt hook up correctly.

[boost_boy]

They are not the same on the pulsar, trust me. The pulsar's bolts directly to the manifold and receives its vacuum via a hole in both the manifold and the cold start valve with a seal around between the two bolts. The DETs's unit receives its vacumm via a big vacuum hose that runs from your idle control section. If you go source a pulsar's part, you will be sadly disappointed.

Dee

[mikehutch711]

Well i checked the wiring going to the unit and it was kinda sketchy, i rewired and fixed it. I still think the regulator is shot tho, because when it is cold you should be able to look straight through it, and when its hot, there should be a slight hole for air to get throught. When mine is cold, its closed shut.Here is a pic from 3 different fsm's comparing, im pretty sure the ca16de pulsar is the same... Maybe you were thinking of the ka as being the different one?

[pulsar gtr]

Hi Mikey,

I haven't been on this forum for the last couple of days, catch me on msn or call me, I have an air regulator if you want it and boost boy is right, the ca16de is different than the det , they look almost the the same, but they are not the same.If you don't have my phone# any more, email me at [email protected] and I will send you my number, I am at work right now, but I can check my emails.

Rafi

[mikehutch711]

Thanks boostboy and rafi.Rafi I emailed you about the regulator.

Could I do a temporary fix by just plumbing the 2 hoses that go to the regulator together? I know it would create a slighly higher idle when hot, but at least the engine would idle.

I did try holding both hoses together when the engine was trying to idle, and it seemed to make the engine idle smoothly.

[pulsar gtr]

yes you can glog it as a temporary solution

PULSAR GTR