Got another problem
- Thread starter 87nasupra
- Start date
I had it happened to me before, it gets so annoying that i had to drive so slow just to get the car warmed up lol. When ever i tried to step on it or give it some gas it would just bog and jerks. After awhile then it runs well. I never had a chance or get up my lazy ass to find out wat was wrong with it.
thats exactly what my damn car is doing. Somebody told me it could be a AFM going out......but then i thought that if it went out then it wouldnt start at all.
Ive had at least 2 AFM's go out and they both caused black smoke to spew out the back, one had the circuit board delaminate and the other had the flapper door stick. The flapper door is easy enough to check. The one that delaminated would keep dying while idling but would start again.
f00g00 said:
Sounds familiar!
To answet your question, most N/A Supras, in my experiance, a little poorly when cold started. It has to do with the fact that you're actually running VERY RICH on cold starts. You have the CTS telling the ECU to richen up because the engine (coolant) is cold. Also, the cold start injector (which sits on the driver's side of the intake plenum) is running.
The first things I would check would be:
1: Cold Start Injector
2: Coolant (water) Temperature Sensor (not sender. Never get them mixed up!)
3: Get a DVOM and check the AFM. I can get you the testing procedures if you don't have access to them.
The cold start injector can't run after start. It only operates when the engine is being cranked. Not saying it can't mechanically leak, just that it can't receive power without the key being in the start position.
i've replaced the cold start injector already, it does the same thing still. I have another coolant temp sensor (side of the thermostat housing right ?) I'll try that in the next day or so and see if that makes any difference.
Well, i was trying to diagnose it. I don't have alot of time during the day to diagnose. I'm trying to replace parts that i already have to see if it helps any.