PopTailGate1998
Newbie
Did you need a tune after installing my the mpfi?
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You're talking to the wrong shops, then. The first shop is wrong.. and as far as the performance shop, they don't want to mess with it because it's just regular stock parts replacement that any basic shop (or DIY'er) can do.Soo you’re telling me it’s plug and play! That’s it! I’m trying to see if my shop can install it and they’re saying I have to take it to a performance shop. I called the perm shop and they do t want to mess with it either ugh
so i left something’s out. I’ve stroke led my 350 tbi to a 383 stock tbi. Mid length headers to xpipeYou're talking to the wrong shops, then. The first shop is wrong.. and as far as the performance shop, they don't want to mess with it because it's just regular stock parts replacement that any basic shop (or DIY'er) can do.
Richard
No wonder neither shop wants to mess with it. Nobody likes playing guessing games with what you've done or had done.A
so i left something’s out. I’ve stroke led my 350 tbi to a 383 stock tbi. Mid length headers to xpipe
Yes to get the full benifit. Without tuning it, it will run lean. The injector data is night and day different the PCM uses to accurately fuel the engine in all conditions. The MPFI spider flows less and the injector compensations are very different.Did you need a tune after installing my the mpfi?
Not so quick. It absolutely does need to be tuned to run correctly. The MPFI spider flows less and the injector correction data the PCM uses to accurately deliver the required fuel is much different. GM should have corrected the tuning on everything those injectors fit and reflashed the VCM/PCM with every injector swap. The engine will run leaner and the 02s have to fatten the mixture back up via long term fuel trims. Not the ideal situation to run the engine in.No, it’s a direct swap