NALU11

I have a 92 pickup with a 22re. Two weeks ago I went to start and it started fine, ran normal for about 2 seconds, then cut off. It did this about 7 to 10 times before it finally started and ran normally. it only does this after it sits and is cold. Ive put in a new Mass air flow sensor, new fuel filter, and i had new plugs and wires last year. I thought the mass air flow sensor would solved the issue, but no. It has 306,000 miles and overall runs great. Im wondering if its the coil or fuel pump? Like I said it runs fine and starts the first time once its warmed up. I bought this beater for 1000.00 8 years ago and love it, but Im at wits end. Before I get slammed Ive searched the forums and google and cant find the exact problem that I have....Please help.......

devo

hey nalu...
try get the manual and just go systematically through all air/fuel/spark tests. Its pretty thorough and you'll eventually find the problem. and don't overlook small things too.
btw, you have an AFM, air flow meter. just a little different than MAF sensor.

good luck

RJR

Two things come to mind.
- non-working cold start injector. The CSI provides extra fuel to enrich the mixture for cold starts. (Takes the place of the choke on carbureted engines.) It will be hard to start when cold if that is not working.

- There is an "anti-backflow" valve that keeps fuel in the lines while the engine is stopped, so that it will start immediately next time. If that valve is bad, the fuel all drains back to the tank after a period of inactivity of the engine, and the fuel pump has to refill the lines before the engine will run.

ZUK

iTrader: (1)

Ok....I'm thinking it's related to the Fuel pump but indirectly. I think your AFM(near the air filter) has fuel pump contacts that are not working right.
The airflow butterfly in the AFM passage might be dirty or gummed up.

After reviewing the info below, try jumpering the Fc and E1 together and see if the prob goes away.

http://www.4crawler.com/4x4/CheapTricks/AFM/index.shtml


http://www.aa1car.com/library/fuel_injection_toyota.htm

Innocent Fool

I had the same issue with one of my trucks a while back. In my case I ran it with a jumper wire connecting the FP - B+ in the diagnostic connector under the hood by the fuse block. This will run the fuel pump whenever the key is on. The only downside is that the pump will continue to run even if the engine is not. This could lead to a fire risk in the event of an accident as you could potentially flood the area with continuous fuel.