BLM's drop while running?!?
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Joined: Mar 2002
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From: Saint Cloud, FL
Car: 92 Camaro RS
Engine: 350
Transmission: 700R4
Axle/Gears: 3.73 Truetrac
BLM's drop while running?!?
I just finally got my spark tables adjusted so i dont bog at WOT anywhere... but now when I am tuning for BLM's they start off ok, relatively normal and then steadly drop to 110, which is set as my min BLM. What would cause my BLM's to drop like this? I even tried to take out a bunch of fuel and retried, started a little higher then still droped to 110, what gives?
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From: In reality
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Re: BLM's drop while running?!?
Originally posted by rsc350
I just finally got my spark tables adjusted so i dont bog at WOT anywhere... but now when I am tuning for BLM's they start off ok, relatively normal and then steadly drop to 110, which is set as my min BLM. What would cause my BLM's to drop like this? I even tried to take out a bunch of fuel and retried, started a little higher then still droped to 110, what gives?
I just finally got my spark tables adjusted so i dont bog at WOT anywhere... but now when I am tuning for BLM's they start off ok, relatively normal and then steadly drop to 110, which is set as my min BLM. What would cause my BLM's to drop like this? I even tried to take out a bunch of fuel and retried, started a little higher then still droped to 110, what gives?
Bad O2 sensor?. I've seen a silicone poisioned O2 act like that.
Joined: Mar 2000
Posts: 1,692
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From: Corona
Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: BP383 vortech, BP383, 5.7 TPI, LG4
Transmission: 4L60e, 700R4, 700R4..
Axle/Gears: 3.27, 2.73
Evap canister purging? Disconnect the hose and clamp it off, and retry.
Is O2 still switching?
Is O2 still switching?
Thread Starter
Member

Joined: Mar 2002
Posts: 385
Likes: 0
From: Saint Cloud, FL
Car: 92 Camaro RS
Engine: 350
Transmission: 700R4
Axle/Gears: 3.73 Truetrac
Re: Re: BLM's drop while running?!?
Originally posted by Grumpy
How long does it take to do that?.
Bad O2 sensor?. I've seen a silicone poisioned O2 act like that.
How long does it take to do that?.
Bad O2 sensor?. I've seen a silicone poisioned O2 act like that.
Red... I dont know anything about the Evap stuff... by the hose you mean the hose going to the TBI or the fuel vent hose?
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