Boost Q'

[racinreaper]

I recently purchased my sy and just got it running somewhat normal... I am still digging up the history of it and what has been done. So far Im told it has L35 heads ,rockers.. new 20g turbo ,underhood boost control and stock wastegate.. Possible that it has a chip. ( I need to go look, how can I tell) there are two delta gates in crossover but told they do not work. My question is how much boost is safe. I currently have it set around 14 and it occasionally spikes to 15. I have waited a long time for this truck and do not want to kill it. It had a bad hesitation when I bought it but I think I fixed it with new plug wires. seems to run alot better but I want to think I hear a slight exhaust leak when crusing near a barrier on the highway. Like I said I just bought the truck and still have a lot of basic questions that I would like to have answered so that I can learn about the truck without abusing it too much... If you have anything that might be pertinant please chime in... Thanks. Patrick #27

 

[odium]

Get datamaster from TTS Power Systems, a laptop, and an ALDL cable. If you post your datalogging files, people can see what your truck is doing, otherwise you'll be trying to fix phantom problems. Datalogging capabilities show you exactly what is going wrong, when, and ALMOST where.

The ECM is located behind the glovebox; this is where a chip will be if you have one. In order to take it out, there is a plastic case from the center console to the passenger side footwell. Pull it out and then take out the bolt that is on the right hand side, holding a triangular bracket in place. If you're lucky, the top screws aren't in and you can pull it out. Otherwise, you'll have to open the grill and speaker on the dash in order to access the ECM screws. If the ECM is still sealed, you have no chip. If the seal has been broken, open it up and you should be able to tell what chip you have from the numbers on the blue chip, or take a picture and somebody on here will know.

Have fun putting it back in.

 

[racinreaper]

just pulled it out.. tan bottom blue top with numbers visible in two oval windows.. I can take a pic but dont now how to get in here...Numbers in window with clear gel over them are 1141196 other side is paper and states S137TX-528
REV 1101 (numbers written in pen)
copyright 1992