Afr's & Nikki Carby
03-15-2004, 03:17 AM
#1
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Join Date: Jan 2004
Location: Sydney Australia
Posts: 29
As step 1 towards going EFI, I've installed a Techedge Wideband O2 meter. I've added a digital display in the dash so I can watch it as I drive. At idle it's 12.6, steady cruise it's 13.6, but if I squeeze the throttle gently it goes lean, over 15 some times.
Does this mean the accelerator pump is way out of adjustment? Or possibly busted?
And often, if I jump on the throttle, it'll stumble. If I take off hard from a standing start, riding the clutch to control traction, it's fine.
Don't know if this is the right place to post questions like this; I suspect there is no one right place.
Anyway, all suggestions welcome.
Amanda
Does this mean the accelerator pump is way out of adjustment? Or possibly busted?
And often, if I jump on the throttle, it'll stumble. If I take off hard from a standing start, riding the clutch to control traction, it's fine.
Don't know if this is the right place to post questions like this; I suspect there is no one right place.
Anyway, all suggestions welcome.
Amanda
03-16-2004, 02:07 PM
#4
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Join Date: Jan 2004
Location: Sydney Australia
Posts: 29
And often, if I jump on the throttle, it'll stumble.
Thats just it, it does stumble.
Yesterday, the AFR hit 17 while accelerating.
But, looking at a wiring diagram, this thing has an "Emissions Control Unit", bolted to the passenger floor I think. Also, on the carb, there's a thing called a "Richer Solenoid", which is activated by a switch (where?) and fed by this ECU. I tried googling last night, and turned up nothing.
The choke circuitry, which also ties into this ECU, has never worked since I've had the car, so maybe this other stuff doesn't work either.
Amanda
03-19-2004, 08:29 AM
#6
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Join Date: Aug 2002
Location: Orlando, Fl.
Posts: 70
To really check the AP. http://www.pbandjracing.com/adjusting_the_...erator_pump.htm 
Sorry I still havent put up the pics. The richer soleniod only works under very limited conditions. Whats wrong with the choke?
Sorry I still havent put up the pics. The richer soleniod only works under very limited conditions. Whats wrong with the choke?
03-19-2004, 03:53 PM
#7
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Join Date: Jan 2004
Location: Sydney Australia
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The choke is supposed to stay out when you pull it. Well it doesn't. I use a peg under the **** to hold it out.
The accelerator pump I'll have a look at later today, or more likely tomorrow. Probably it just needs adjusting.
I adjusted up both the throttle cable & choke cable the other day. They were both terribly loose. I get the car serviced regularly at Maztune, who are in the next street from where I work. Guess there's some things they just never look at.
The accelerator pump I'll have a look at later today, or more likely tomorrow. Probably it just needs adjusting.
I adjusted up both the throttle cable & choke cable the other day. They were both terribly loose. I get the car serviced regularly at Maztune, who are in the next street from where I work. Guess there's some things they just never look at.
03-19-2004, 09:27 PM
#10
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Join Date: May 2002
Location: California
Posts: 22,465
Originally Posted by commanda' date='Mar 19 2004, 02:33 PM
Yes I know that.
The choke, I discovered that putting a peg under the **** wasn't doing anything, just taking up the slack.
The choke, I discovered that putting a peg under the **** wasn't doing anything, just taking up the slack.