TBI woes

[clarkjw24]

Well I can't figure this thing out. Its still cranks and idles but dies once its put in gear. Also has a backfire. I've noticed that the pass injector is wet around the plug were as the drivers side is dry. Both seem to be pulsing the same into the TB. Its not throwing any codes now. Could someone help me please. Could the ecm be bad or maybe the tb regulator?

I have replaced the following in the last couple of weeks.

Plugs
Wires
Coil
Air Idle controll
Map
Fuel filter
Fuel pump
New sock
Distributer Cap
Rotor button
O2 sensor

 

[ryan22re]

sounds like maybe the only thing left is the regulator.

ryan

 

[clarkjw24]

Where do I get one? How hard is it to change and what do they cost? Thanks

 

[ryan22re]

might have one in stock here at the stealership.

give me a minute to check.

ryan

 

[ryan22re]

nope dont have on in stock.

gm # 17112399

cost (employee) about $74 plus tax.

is very easy to change.

ryan

 

[clarkjw24]

nope dont have on in stock.

gm # 17112399

cost (employee) about $74 plus tax.

is very easy to change.

ryan

I believe I'll just get another complete used Throttle body. Thanks ryan. Got a one coming from a guy on here.

 

[ryan22re]

yeah the aftermarket adjustable ones are cheaper than the gm ones.

ryan

 

[ryan22re]

have you checked the timing?

just wondering

ryan

 

[clarkjw24]

Yeah I've got a digital T.L. and its set exactly where I had before when it was running right.

 

[unclematty]

Have you checked the fuel pressure? TBI should read around 12 to 15 PSI when running, and not loose any more than a pound or two under acceleration, low fuel pressure causes all sorts of weird problems.

 

[clarkjw24]

Have you checked the fuel pressure? TBI should read around 12 to 15 PSI when running, and not loose any more than a pound or two under acceleration, low fuel pressure causes all sorts of weird problems.

I didn't have a way to check the pressure thats why I just bought a new fuel pump and checked all the lines for kinks and bends.