dirtmissle
Registered Member
All,
Just wanted to share a recent customer service experience and detail the fix for my recent low idle stall problem on my 88 K5. I put a rebuilt 5.7 back into the Blazer that was stock except for flat top pistons, mild cam (speed pro), and headers (I kept my stock TBI setup for driving ease). The motor ran well except down low where it would stall shifting from park to reverse, to drive, and sometimes at stoplights. After many nights of research I found that tbi motors with headers need a heated O2 sensor if it is installed more than 12'' from the head. Mine was and I needed to install one. I also found (highly debated) that I should probably get my chip re-programmed for the cam (move fuel/air map) although the cam is supposed to work with the stock ECM. After I had extensively searched for exhaust leaks, vacuum leaks, new plugs, wires, cap and rotor; I went for the chip. Brian Harris (Harris High Performance) is the one who turned me on to this information which seemed like a last ditch effort to make my engine idle right. Brian told me what chip I needed after I emailed him the specs for my motor. I ordered a part I didn't need and Brian automatically refunded my money and didn't send the part with my order and explained why I didn't need it. The parts came and I immediately installed the chip provided by Brian which immediately helped my idle. I then installed the 3wire heated 02 sensor which cleared the problem completely. This is one of the best customer service experiences I have come across in years and wanted to share it with the rest of you guys. I don't promote businesses, but Brian Harris of tbichips has a plethora of information and is a great businessman. Hope this might help those out there with the same setup or problem. Happy Holidays! Dirtmissle
Just wanted to share a recent customer service experience and detail the fix for my recent low idle stall problem on my 88 K5. I put a rebuilt 5.7 back into the Blazer that was stock except for flat top pistons, mild cam (speed pro), and headers (I kept my stock TBI setup for driving ease). The motor ran well except down low where it would stall shifting from park to reverse, to drive, and sometimes at stoplights. After many nights of research I found that tbi motors with headers need a heated O2 sensor if it is installed more than 12'' from the head. Mine was and I needed to install one. I also found (highly debated) that I should probably get my chip re-programmed for the cam (move fuel/air map) although the cam is supposed to work with the stock ECM. After I had extensively searched for exhaust leaks, vacuum leaks, new plugs, wires, cap and rotor; I went for the chip. Brian Harris (Harris High Performance) is the one who turned me on to this information which seemed like a last ditch effort to make my engine idle right. Brian told me what chip I needed after I emailed him the specs for my motor. I ordered a part I didn't need and Brian automatically refunded my money and didn't send the part with my order and explained why I didn't need it. The parts came and I immediately installed the chip provided by Brian which immediately helped my idle. I then installed the 3wire heated 02 sensor which cleared the problem completely. This is one of the best customer service experiences I have come across in years and wanted to share it with the rest of you guys. I don't promote businesses, but Brian Harris of tbichips has a plethora of information and is a great businessman. Hope this might help those out there with the same setup or problem. Happy Holidays! Dirtmissle
