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Won't stay running on first start-up!

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compression

15+ Year Contributor
1,433
12
Dec 9, 2004
vero beach, Florida
Car will turn over and eventually barely start and i can give it gas , it'll rev then want to stall unless i give it full throttle. Seems to be running severely rich but wont stay on long enough to get a good afr reading , looks to hover around 9-10:1 during the short time it runs

Just checked all the similar threads, and a few ideas. i have an s90 throttle body with a block-off plate, nothing but the butterfly and a 91-94 tps, could this cause it to not want to run? getting 0% tps on ecmlink, maybe i soldered the wires wrong? (i'm 99% sure they are correct) Could i do anything with the Fastidleiscpos tab to compensate?

Also my coolant temp is stuck at 226*, i'm starting the car without the radiator in it, don't think that would make the temp read that high, maybe the sensor is bad? some of the threads give a similar issue, Could i zero out the cooltempfueladj and solve this?

EDIT: i found my coolant temp wires were plugged into the ac/ switch on the t stat housing, i'm pretty confident that is what is wrong, however if i try to start my car now my wife will surely castrate me in the garage where i stand , so ill post tomorrow!

The car has a speed density setup, i assumed that was why and borrowed a stock mafs and changed the settings accordingly, still same thing. i am registering airflow both ways during the short intervals of the engine running. i have an iat sensor and an ecm plug and play cable, iat's are stuck at 77* normal?

i'm not sure posting a log of the start-up will make a difference, but if you think it will help i will. The car is also showing speed at 5mph? car isnt moving.

I am trying to not be so vague, i'm very frustrated and confused, i have never run a car with dsmlink this will be my first time, I've researched as much as i found that pertained to my issue, i guess i just need a second opinion i'm in the garage myself all night working with this thing and its getting very discouraging.

i am also running a wb o2, have not hooked up the wire for nb simulation yet, could this also be a problem? (do not have a NB o2 at all)

If i missed an important piece in this E-diagnostic please let me know I've got all the information.

car is on : 1050cc inj, bfp 43 psi global fuel is -61 345ms with speed density and/or stock 1g maf (plug and play with SD) this is the first time starting the car, I've tried for a while two nights in a row. Throwing 0014 Throttle position circuit malfunction CEL.

Not sure if its relevant, but the car will not start from turning the key , however it will start with a manual push button, i'm not sure why,
 
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Your coolant temp sensor wire situation was most likely your problem. I will look for a response from you later when you're able to start the car again.:)
 
<a href="http://s48.photobucket.com/albums/f224/mxdawg121/Mobile%20Uploads/?action=view&amp;current=IMAG0189.jpg" target="_blank"><img src="http://i48.photobucket.com/albums/f224/mxdawg121/Mobile%20Uploads/IMAG0189.jpg" border="0" alt="Photobucket"></a>


Which of these wires goes to the god forsaken cts, I've read two different things.

On a side note, with the speed density setup on ecmlink will the car start by plugging in the sensors and setting the mode to speed density? Or do you have to configure the VE table ?

i used the bottom left wires, ( was using the others before hand ) car hesitated a little then fired right up!! i also leaned out the global by about 10% and it was still piss rich 10-11:1 at idle. i can finally start really buttoning the car up! im super stoked!

on a side note, cool temp was still showing 226 on the log, and tps at 0%

was on stock mafs

Probably was a little rough on it, being it was the first time it had run for more then 10 seconds in the last 5 years, not to mention the water pump wasnt hooked up, or the lack of radiator in the car.

<iframe width="420" height="345" src="http://www.youtube.com/embed/132mGjal0aQ" frameborder="0" allowfullscreen></iframe>
 
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