1998 2 door tahoe

caw_86 said:

1998 2 door Tahoe Sport

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Nice looking truck.

caw_86 said:

Replace fuel gauge air core motor

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If you’re replacing it to fix a vibrating pointer, you can fix it easily with a tweak to the ECU tune. It’s a cheap and durable fix if you happen to be tuning the ECU for other reasons.

Simply change / double (2x) the fuel gauge PWM frequency and the flutter goes away.

Clean 2 door. I like what you're doing.

1998_K1500_Sub said:

Nice looking truck.



If you’re replacing it to fix a vibrating pointer, you can fix it easily with a tweak to the ECU tune. It’s a cheap and durable fix if you happen to be tuning the ECU for other reasons.

Simply change / double (2x) the fuel gauge PWM frequency and the flutter goes away.

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I have never seen anyone recommend before, would love to fix it without having to replace it, dont know anything about tuning devices or how to do it though

caw_86 said:

I have never seen anyone recommend before, would love to fix it without having to replace it, dont know anything about tuning devices or how to do it though

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If you want details let me know, I'll point you to a recent thread that discussed both tuning methods (e.g., Jet's "Dynamic Spectrum Tuner") and, among other things, the "tuning change" to take the buzz out of the fuel gauge.

1998_K1500_Sub said:

If you want details let me know, I'll point you to a recent thread that discussed both tuning methods (e.g., Jet's "Dynamic Spectrum Tuner") and, among other things, the "tuning change" to take the buzz out of the fuel gauge.

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Yes please

caw_86 said:

Yes please

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Check out these threads.

The first talks about tuning, the fuel gauge buzz, and which tools can be used to tune oneself.

The second just talks about the fuel gauge buzz.

They’re easy reading.

Thread 'Blackbear tune to disable security, rear O2s...anything else???'
https://www.gmt400.com/threads/blackbear-tune-to-disable-security-rear-o2s-anything-else.54578/

Posts in thread '120 MPH Cluster'
https://www.gmt400.com/threads/120-mph-cluster.52101/post-1216166

Also:

Posts in thread '96 chevy truck engine change'
https://www.gmt400.com/threads/96-chevy-truck-engine-change.56828/post-1221572

Thread 'DIY ECM tuning… worth the hassle?'
https://www.gmt400.com/threads/diy-ecm-tuning…-worth-the-hassle.56314/

1998_K1500_Sub said:

Check out these threads.

The first talks about tuning, the fuel gauge buzz, and which tools can be used to tune oneself.

The second just talks about the fuel gauge buzz.

They’re easy reading.

Thread 'Blackbear tune to disable security, rear O2s...anything else???'
https://www.gmt400.com/threads/blackbear-tune-to-disable-security-rear-o2s-anything-else.54578/

Posts in thread '120 MPH Cluster'
https://www.gmt400.com/threads/120-mph-cluster.52101/post-1216166

Also:

Posts in thread '96 chevy truck engine change'
https://www.gmt400.com/threads/96-chevy-truck-engine-change.56828/post-1221572

Thread 'DIY ECM tuning… worth the hassle?'
https://www.gmt400.com/threads/diy-ecm-tuning…-worth-the-hassle.56314/

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Guh, $300 To get the tuner

caw_86 said:

Guh, $300 To get the tuner

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You will find more to do with it than just the fuel gauge. I did, anyway. You’ll find some good ideas here on GMT400.

1998_K1500_Sub said:

You will find more to do with it than just the fuel gauge. I did, anyway. You’ll find some good ideas here on GMT400.

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Ive found so many good things here, its amazing a forum is still alive, face book is pretty **** compared to forums

caw_86 said:

Ive found so many good things here, its amazing a forum is still alive, face book is pretty **** compared to forums

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Seriously, there are some easy tweaks you can make to improve drivability / fun factor, mostly related to IIRC:

- re-tuning the abuse parameters, see various posts in thread 'Towing with 33” tires versus 35” tires'
https://www.gmt400.com/threads/towing-with-33”-tires-versus-35”-tires.56164/post-1211110

- re-tuning power enrichment parameters

- disable VATS

- disabling EGR (if you wish)

- shift point and TCC tweaks to better suit your driving / personal preferences

- fuel gauge debuzzer

- other goodies I have overlooked, some of which may have been covered in the threads I provided above


Others here may have suggestions for tweaks to fuel delivery / spark advance / knock retard / etc.