[timmyrand]

I recently bought an 89 toyota pickup from some kid in RI. I bought it knowing that it ran rough but I had no idea what I was getting into. It a 5 speed 6cyl with 189,000.The problem is that the truck is running super rich. I went through about 3 gals of gas in a 5 mile trip! Black smoke out the tail pipe painting the ground. The kid who I bought it from went through all the hoops of figuring it out. Changed cold start, egr, plugs,wires,o2 sensors,air box. the whole shibang. Im not getting a check engine light. I had it run on a computer and it couldnt diagnose the problem. Leaky fuel injectors. So, now it has 6 new injectors. Dont know what to do. Im at a loss for ideas. Oh and I called toyota on the head gasket recall. No luck! Said there is no recall on my truck. Please, any help would be appreciated.

 

[MyTrix]

ECU?

I wonder if you slaved in another box would the problem follow? You could probably pick one up on Ebay for a few dollars and plug it in. In fact, here's one:

http://cgi.ebay.com/ebaymotors/TOYOTA-PICKUP-4-RUNNER-4RUNNER-ECM-ECU-COMPUTER-22RE_W0QQcmdZViewItemQQcategoryZ33596QQitemZ8015485800QQrdZ1QQsspagenameZWD1V

 

[Mushroom_Toy]

Before you jump to any conclusions, try this: http://www.4x4wire.com/toyota/minutemods/afm/

If that doesn't help try looking for stuff on the internet about you fuel mixture, there's a pretty good bit of info out there.

 

[burned300]

I wonder if your cold start injector is stuck open. Darrin

 

[timmyrand]

Thanks for the suggestions guys. I found an ecu online for $50. I'll give that a try. The cold start injector is new so I dont think thats it. Any tips on the online fuel data sheets. That would be a great help if you could lead me in the right direction.