Help with cold starting
Dec 19, 2005 | 06:47 AM
#1
Thread Starter
Registered User
Joined: Jan 2005
Posts: 404
Likes: 3
Help with cold starting
Hey Guys
Haven't been here for a while but I've got a problem with my truck and I was hoping someone could help.
I've got a 91 2wd PU with a 22r 5spd Fuel Injection.
The problem is it just doesn't want to start when it's cold! This is my first winter with this truck.
I NEVER plugged in my 88 2wd PU with a 22r 5spd Carborated truck and it had NO problems starting in -40 (and it was down there a couple of weeks at a time). Had no problems at all... Talk about a great truck!
But my 91 just doesn't want to fire when it gets to about 0. WTF??? The only real difference I can see is FI vs Carb
Does anyone have any hints on what to look for? Cranking isn't a problem but it seems like there's a problem with the electronics/sensors or something. I don't "think" it's flooding, it just doesn't want to fire
I can't plug it in because I've got nowhere to plug it
If anyone has any advice it would be GREATLY appreciated
Thanks in advance!
Haven't been here for a while but I've got a problem with my truck and I was hoping someone could help.
I've got a 91 2wd PU with a 22r 5spd Fuel Injection.
The problem is it just doesn't want to start when it's cold! This is my first winter with this truck.
I NEVER plugged in my 88 2wd PU with a 22r 5spd Carborated truck and it had NO problems starting in -40 (and it was down there a couple of weeks at a time). Had no problems at all... Talk about a great truck!
But my 91 just doesn't want to fire when it gets to about 0. WTF??? The only real difference I can see is FI vs Carb
Does anyone have any hints on what to look for? Cranking isn't a problem but it seems like there's a problem with the electronics/sensors or something. I don't "think" it's flooding, it just doesn't want to fire
I can't plug it in because I've got nowhere to plug it
If anyone has any advice it would be GREATLY appreciated
Thanks in advance!
Dec 19, 2005 | 02:57 PM
#2
Registered User
Joined: Jan 2005
Posts: 736
Likes: 15
From: Pleasanton Ca
Either it's the cold start injector or the cold start injector time switch. 99% of the time it's the cold injector time switch.
For testing of the cold start injector time switch, remove the connector and measure the resistance between the two terminals. The cold start injector time switch is located right beneath the bvsv valve. The sensor to the right of it is the water thermo sensor (also known as the coolant temperature sensor). My manual is for an 84 so yours may vary. But if you're curious mine indicates 20-40 ohms below 86 degrees F and 40-60 ohms above 104 degrees F. From the lower prong to ground should be 20-80 ohms.
For testing of the cold start injector, remove the connector and measure the resistance between the two terminals. My manual indicates 2-4 ohms. However, the injector could ohm out correctly yet be plugged.
For testing of the cold start injector time switch, remove the connector and measure the resistance between the two terminals. The cold start injector time switch is located right beneath the bvsv valve. The sensor to the right of it is the water thermo sensor (also known as the coolant temperature sensor). My manual is for an 84 so yours may vary. But if you're curious mine indicates 20-40 ohms below 86 degrees F and 40-60 ohms above 104 degrees F. From the lower prong to ground should be 20-80 ohms.
For testing of the cold start injector, remove the connector and measure the resistance between the two terminals. My manual indicates 2-4 ohms. However, the injector could ohm out correctly yet be plugged.
Thread
Thread Starter
Forum
Replies
Last Post
Poncho0206
95.5-2004 Tacomas & 96-2002 4Runners
3
Jul 10, 2015 06:21 PM
