1st Gen Lunchtable Thread - General Discussion

what are these for?

 

If I understand your scanner readings, the ECU is reducing the fuel to air ratio by 7%?

 

Oof, that hurt.

 

The Taco and the Merc ran fine. Checkmate.

 

Queer

 

I'd say that's 2-1; Tyler's winning

 

What about his civic

 

Jumped in with perfect timing, just like a true friend

 

Based on this explanation, it looks like I'm ok. I may need to check the readings after a good drive.

STFT (short term fuel trim) is the instantaneous response of the ECU to reduce or add fuel to maintain an ideal combustion mixture. It depends on the response of the O2 sensor. If the O2 sensor says the exhaust is too rich (too much fuel) the ECU will reduce pulse width of injectors to subtract fuel. Thus STFT will read negative. If exhaust is lean (too much oxygen), it will add fuel and STFT will become positive. Ideally STFT should be close to 0. But it fluctuates as you drive the car.

LTFT (long term fuel trim) should not change instantly, it is a learned response that happens over time. If the STFT stays consistently negative or positive for a long period of time. That will show up in the LTFT.

If the LTFT is negative, it means the ECU has been reducing fuel to maintain an ideal fuel mix. Which basically means the car is running rich. If LTFT is positive, it means the ECU is adding fuel which is an indication that the car is running lean. Normally LTFT should be between -10 to +10 percent. But the closer it is to zero, the more ideal the combustion mixture.

 

Yeah. I now own a 1986 Nissan 300zx Z31. Zane is a very very bad influence.

 

@BartMaster1234

 

Also ran fine. Sold it at a profit. I’ve sold all my vehicles at a profit. I haven’t lost money on a single one.

 

Nissan help make you mentally strong.

 

(cause Tyler clearly won)

 

That made more sense than a lot of the shite I've read from 'experts'

 

Yet

 

$500 was a steal on that Z31. The next cheapest one on CL is a few grand.

 

100xNylon Fender Wheel Flare Moulding Clips For Toyota

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is this by chance by blue92 thought i was trying to remove when he recommended that pry tool

 

Could've been worse...