camer0nn

I have a 1990 Toyota Celsior which seems to have problems cold starting. I'm not too sure where to start trying to diagnose with this or what it could be?
When I start it cold it idles fine but when I stop at the end of the driveway after reversing out the revs drop and the car dies. After starting it 2-3 times i can get it going down the road and the problem is no more when i come to my next stop.
Any ideas what it could be? I thought it might be the MAF sensor?

LScowboyLS

Idle Air Control Valve (IACV) and ECU caps are two things that could cause this, but not the only two things.

you need to scan this car for codes, then clear the codes by disconnecting negative battery cable for a few minutes, then recrank and see if stalling comes back, then scan it again - report initial and returning codes back here, and we can analyze from there.

YoshiMan

Replacing the Coolant temperature sensor could help as well. My cold idle was stabilized TREMENDOUSLY from a new one.

LScowboyLS

Agreed!

the Toyota p/n for this part is 89422-20010

camer0nn

Wow that's a great page. I'll have a go at getting the codes and keep posted how i get on

camer0nn

So i just checked the codes and there is none. Was blinking non stop every .25sec. Cleared them anyway so will see how it goes next cold start. I have been getting by the stalling issue by holding the brake hard on when changing gear so i can keep the rpm up by giving a little gas
Will look into replacing the coolant temp sensor though.