92 svo starting problem

[recognized34543]

hey guys i have a 92 mustang convertible with a svo (2.3t) swap. When i first get in the car and go to start it the first time it cranks it shuts right off, and the second time i crank it it starts and runs a little choppy. After it gets warmed up it isnt as choppy at an idle. Any thoughts? All help is appreciated. thanks

 

[Delray Dude]

possible IAC (Idle Air Control Valve) going bad. sometimes you can remove them, clean the crap out of them and they work fine. always a good idea to kill the computer's memory and let it relearn the settings too.

 

[recognized34543]

thanks for the help. i cleaned the Idle Air Control Valve and it helped it run better but it still occasionally bogs down and still shuts off after first start. anymore suggestions? thanks

 

[Delray Dude]

what was the donor motor out of? wondering if the computer has issues with the cold start signals being given to it

 

[recognized34543]

I'm not positive because i bought it this way but i think it was a rebuilt motor from a thunder coupe.

 

[Delray Dude]

maybe the throttle position sensor is out of adjustment? I assume that the previous owner swapped in the TC computer?

Maybe a bump up in the idle throttle stop would help?

also do you know what injectors you have in it? if you have the stock non turbo - that could be the problem....just throwing ideas out there..

 

[65ShelbyClone]

Pull the codes and get back to us.

 

[recognized34543]

i know it has the brown top injectors in it which should be good for the turbo. I will have to check the other sensors but as far as codes no codes comes up.

 

[65ShelbyClone]

i know it has the brown top injectors in it which should be good for the turbo.

Turbo engines came with both green(30lb/hr) and brown(35lb/hr)-top injectors depending on year. Which one you need depends on what car the engine came out of.

 

[bigblockbob]

remove the pass kick panel and tell us what the ECU sticker states, Also check your timing, remove the spout on the tfi harness to lock your timing, with the timing gun you should see 10* (factory setting). What are the outside temps when you try to start the car?