stanguy306

Hey guys, I dropped a GT40 crate motor in my car....and car sometimes stalls when coming to a stop....its starts fine...but has an issue holding idle....I did all the normal trouble shooting....does anyone know what the stock lph is? I thought 155 but not sure....dont know if this could be the issue.....??I pulled the motor out of my other car where it ran great but that car had a 190 pump in it? Any thoughts? Car at idle is at 32 psi fuel.....24# injectors....yeah I think that bout sums it up.....thanks all

mjr46

stock is 88lph and have you checked for vaccum leaks???

stanguy306

Deng 88lph? Wonder if thats my issue...vac leaks were checked....all seems well...I searched a bit and found people who had similar issue and it turned out being the fuel pump? But I dont know worked great before just seems weird that all of a sudden it took a crap....unless the issue is that the pump is "stock"....thats a diff story...whacha think???

mjr46

you could try cleaning the IAC and the MAf...and try running a koeo/koer test to check for any codes also the multi pack connectors behind the intake or/ clipped to it were a common problem of corrosion getting inside the pin connections and cause multiple issues like such...cleaning those and installing some contact cleaner/dialectic grease is worth a try!

PRO50SC

32 psi is a lil low. Bump it to 39 and see what happens.

TTGreenSN95

the only way i could get mine to idle is to open up the buterfly a little then I had to reset the tpssensor now it idles.
the motor would stop when I stopped.I have a kirban adj. reg. and adjusting the fuel pressure had no effect on idle.
If you dont have that guage to read the sensor I paid 5 bucks for mine at harbor frieght.

93 LX FiveO

run a KOER test

even if u dont have a CEL, something may be out of whack.