diy o2 and tpi question

[Gabe]

I had to add quite a bit of cold (choke) fuel to mine in order to kill it
wanting to stumble off idle after first starting it in the mornings...

Don't know if it was something due to my transplant (TPI in a pickup) or if
that's just the way they are out of the box....

I'm running ARAP code.

Gabe

chris abreu wrote:

> Hi guys,
>
> sorry if you have answered this question a million times already, but i
> haven't seen a clear answer in the past emails.  How do you read the output
> of the system.  I dont have too much electronics knowledge and therefore
> looking at the layout doesn't help me much. I don't see an LCD display on
> the parts list or numerous LED's.  Can somebody give me an answer in terms
> an ME would understand.  The only experience I have with anything even
> close to Electrical work is burning proms  for TPI and installing TPI.
>
> second question
> My 89 tpi system doesn't seem to know how to run when cold.  it sputters
> and wants to stall.  I haven't looked at 02 voltage at startup, wouldn't
> matter anyway, because the sensor isn't warm enough.  I have the ability to
> make changes in the prom if you guys have any recommendations.  changed
> coolant temp sensor, mat is good, iac is good. Haven't checked fuel
> pressure yet though.
>
> thanks everyone
> chris
>
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