Okay I have a pretty bad hiccup at about 3400rpm. It's well grounded, the tps is set, don't seem to have any leaks. I'll be changing the fuel filter tomorrow. It's an 87 tII with full exhaust with cat hks intake, and rtek 1.5.

 

 

Thanks, but I searched So far from what I read I checked for vacuum leaks, replaced a faulty tps sensor, cleaned up the grounds, changed the plugs, pulled and checked the cat, replaced all boost related hose clamps. Now would you like to help or you just here to taunt the noob

 

Screw the search vehicle.

At that low rpm I'd wager it's bogging down to too much fuel. Yes, I KNOW your secondarys are not open at that rpm (unless that is a feature of the RTEK1.5).

If the thing clears up as you get into the 4000 rpm plus range, I'd wager/guess that I'm right as to why it's bogging/hesitating.

Got a wideband or even a narrow band gauge? Or digital meter tied to the narrow band 02 sensor output?? I'd bet you'll see RICH when it does what you describe.

 

Yeah it is a feature of the rtek. It lowers the rpm to 3500 and adds 5% duty cycle to the primaries. I need to get in on a wide band. Thanks.

 

Then maybe the secondary injectors are too large????? Or maybe the primary's are too large? Definetly too much fuel imho.

The wideband or narrow band gauge won't stop the bogging but will show THAT is the problem.

 

Yeah I know. I just want to verify what the problem is. As far as I know the injectors are stock, maybe one having a sealing problem.