SPARK GAP FOR 1990 TOYOTA COROLLA I bought NGK G-POWER PLATINUM SPARK PLUGS Looking everywhere - I checked all the panels under the hood and I don't have a car manual for my 1990 4 cyl 1.6 litre 4-door Toyota Corolla Sedan. It says '1600' on the valve cover. THANKS!

Question edited for clarity.

Depends on the spark plugs

Video
https://www.google.com/search?q=2005+Nissan+Armada.+spark+plug+setting

2005 NISSAN ARMADA 5.6L V8 Spark Plug - RockAuto

https://www.rockauto.com > catalog > nissan,2005,armada...
Do Not Gap, Gap is Preset; For Sustained High Speed Driving; Original Equipment Is Platinum. OE Fine Wire Platinum; Pre-Set Gap: 0.044".

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2005-2015 Nissan Armada 5.6L V8 8 pc NGK G-Power Spark ...

https://www.sixityauto.com > 8-pcs-ngk-g-power-spark...
8 pc NGK G-Power Spark Plugs for 2005-2015 Nissan Armada 5.6L V8 ; 2009, Nissan, Armada, 5.6L V8;FLEX;Gap 0.044" ; 2009, Nissan, Armada, 5.6L V8;Gap 0.044".
Rating: 4.6 · ‎5 reviews

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the spec is .043", for both the V6, and the Inline 4. The theory behind enlarging gaps, is that a larger gap creates a larger spark, thus more effecient ignition. The problem is, your ignition system was designed for the .043" spark plug gap, not larger. Enlarging the gap puts a greater strain on your ignition system components, and it may not be strong enough to jump a larger gap. The result would be less efficient combustion, or a cylinder(s) that won't fire at all. Pull your plugs, and set them at .043". Check the distributor cap, rotor, wires, and your filters. Make sure the car is totally warmed up before the smog test. Good luck.

open hood
look up
under hood, see that sticker
there, shows gap and timing and other data.
no engine stated.
this is 1.6L i think.

4AFE, 1.6L DOHC EFI , injected. Iron block, starting in 1990 model.
this ?

4AFE, spark gap 0.031

this car is Toyota Corolla. (cept stickers)

first google hit of 1000

http://www.toyotaownersclub.com/forums/topic/9479-spark-plug-gap-size/

for sure, all engines, on any prizm are here. all 3.

yes,
open hood look up (under hood), see the EPA sticker there?, sure
see GAP for spark plugs. bingo, all cars USA its there,.

yes, they need to be gaped. it shows that. (that EPA tag)
they dont make spark plugs with correct gap for every engine made., sorry, so you need to do that.
the FSM for you car (book) cover this, step by step.
ill assume the plugs match your car same EPA sticker shows that... whats needed.

NGK shows 0.044" gap set.
http://www.ngksparkplugs.com/part_finder/car_truck_suv/results.asp

this is the correct plug, is that yours?
BKR5EGP

it should be .045". depending on the year there maybe a sticker/decal under the hood that says what the plug gap is.

I'd use the type spark plug recommended by your owners manual, the manual may also give you the gap. There may be a decal under your hood that gives this info. Anywhere you buy sparks will have the gap in the info. For one ngk plug I looked at, it said .043in gap.

Different spark plugs manufacturers may have different gap recommendations.

1.1 mm
but there are differences between brands and types ( platinium cq irridium)

http://www.easycarparts.nl/toyota/corolla-e11-sedan-1997-2001/1-3-12_v-2e-05-1997-10-2001/motor/ontsteking

.020

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