car dies when spout is pulled

[justin mccluske]

any one know why a sho would die when the spout is pulled?I change just about every senser (except knock senser) and even the computer, i also tore the motor apart to check timming and it was on .The car does run really well it just is a lot slower then it should be

 

[Rockledge]

That's a hard one to figure. A loss of a valid SPOUT signal back from the PCM will cause the DIS Module to automatically turn the ignition coils on and off using the PIP signal. This results in a fixed spark timing and dwell (10 degrees BTDC) which by itself should not cause the engien to stall.

So the PIP signal is something to consider. The engine won't run or start in the absence of a PIP signal, however the signal can get "noisy" which will usually set a code. It sounds like you may have recently replaced the crank sensor, but have you tried pulling codes anyway?

Also, can you keep the engine running when the SPOUT is pulled by goosing the throttle (i.e., adding more air and fuel)?

 

[justin mccluske]

That's a hard one to figure. A loss of a valid SPOUT signal back from the PCM will cause the DIS Module to automatically turn the ignition coils on and off using the PIP signal. This results in a fixed spark timing and dwell (10 degrees BTDC) which by itself should not cause the engien to stall.

So the PIP signal is something to consider. The engine won't run or start in the absence of a PIP signal, however the signal can get "noisy" which will usually set a code. It sounds like you may have recently replaced the crank sensor, but have you tried pulling codes anyway?

Also, can you keep the engine running when the SPOUT is pulled by goosing the throttle (i.e., adding more air and fuel)?

no codes pop up and when i pull the spout and give it gas it will stay running entell i try to let it idle

 

[projectSHO89]

Hopefully, you're pulling the plug that is by the cam sensor, not down by the coil.

Pull the SPOUT plug with the engine and ignition OFF only.

It it still won't idle with the SPOUT jumper removed, investigate your IAC valve.

Steve

 

[Racer X]

Maybe his timing belt if off by a tooth at the crank? Happens a lot when people use a 3.2L marking on a 3.0L engine, and vice versa.

 

[justin mccluske]

Maybe his timing belt if off by a tooth at the crank? Happens a lot when people use a 3.2L marking on a 3.0L engine, and vice versa.

i varifid timming by turning the crank to top dead center and making sure the cams are on there mark.i wonder if i advance by a tooth on the crank if this will fix it?because i remember i while back i checking timming with a timming gun and it was ******** but im not sure how much

 

[projectSHO89]

Remember, you cannot accurately check timing unless the SPOUT plug is pulled....

Steve

 

[sho'd]

i'm going to ask a really stupid question, but what is the "spout" i am lost. thanks.

 

[Rockledge]

The SPark OUTput (SPOUT) signal is generated by the PCM (based on sensor feedback). It contains the optimal spark timing information used by the DIS module to fire the coils.

The SPOUT connector is simply an in-line switch within the SPOUT circuit that runs between the PCM and the DIS Module.

Pulling the SPOUT connector causes the DIS Module to fire the coils directly from the PIP signal (instead of of using the SPOUT signal from the PCM). This results in a fixed spark angle of 10 degrees BTDC, as well as a fixed dwell.

Not the kind of timing that you'd want, performance-wise.

 

[sho'd]

ok, thanks for the detailed info. something i will leave alone then. was curious as to what it was all about, i like to learn all i can about my car and how it operates.