Stumble with TT chip

[NorCalTurbos]

Today I set the tps and the motor started to stumble I had an idea to see how the car would run with the stock chip so I changed it back to factory and it idles better and spool even improved tps set a .46 could it be that the TT chip has different specs for the tps setting???

 

[TurboDave]

.46 is too high, set it to .40-.42

 

[NorCalTurbos]

Correct me if I'm wrong this is done with the key on but engine not running right?

 

[TurboDave]

yes

 

[Eric Stage I]

If you put a stock chip in with 50lb injectors, and it ran better, then there is something way wrong. I would confirm that they are indeed 50's (get the part# off the injector itself). If they are 50's, then there may be some other problem, like a bad MAF.

The TPS setting doesn't really matter as it autozeros to 0% at key on.

 

[NorCalTurbos]

Thanks for the info

 

[NorCalTurbos]

If you put a stock chip in with 50lb injectors, and it ran better, then there is something way wrong. I would confirm that they are indeed 50's (get the part# off the injector itself). If they are 50's, then there may be some other problem, like a bad MAF.

The TPS setting doesn't really matter as it autozeros to 0% at key on.[/

If you put a stock chip in with 50lb injectors, and it ran better, then there is something way wrong. I would confirm that they are indeed 50's (get the part# off the injector itself). If they are 50's, then there may be some other problem, like a bad MAF.

The TPS setting doesn't really matter as it autozeros to 0% at key on.

I got the chip and injectors from one of our brothers on the site here's the chip info 84/85ecm 1574 50# street 93 18degrees 12-13 psi the maf is a stock but known good I know it's time to change it out just waiting to make extra $$ to get the parts but anyway maybe the chip info helps any feedback is greatly appreciated, thanks