Starting Issues (Threads Merged) can i use platinum +4 plugs in my 97 camry? - Toyota Nation Forum : Toyota Car and Truck Forums

tendency · 11-22-2010, 01:24 PM

i just got new plugs and now notice they're +4 and not +2 (my originals). can i use the new ones? thx-

***Mister_Perkins*** · 11-22-2010, 01:26 PM

as long as they are NGK or Denso you should be fine. You will notice a more complete combustion compared to the 2+

Bosch Spark plugs are a no no

tendency · 11-22-2010, 01:28 PM

they're bosch .. shouldnt those be fine as well?

Pvt-Public · 11-22-2010, 01:29 PM

Yes, but why? I actually got worse mileage with the 4 electrode than with the stock plugs.

***Mister_Perkins*** · 11-22-2010, 01:30 PM

Quote:

Originally Posted by tendency

they're bosch .. shouldnt those be fine as well?

Bosh are no good. Get NGK or Denso.

tendency · 11-22-2010, 01:32 PM

does it go 1 4 2 3 as you're looking down at the plugs from the top? thx-

***Mister_Perkins*** · 11-22-2010, 01:34 PM

Quote:

Originally Posted by tendency

does it go 1 4 2 3 as you're looking down at the plugs from the top? Thx-

1 3 4 2

tendency · 11-22-2010, 01:48 PM

i can turn the car over but it wont fully catch .. start to backfire then dies. what should i check? double checked all plugs/wires and firing order. thx

***fenixus*** · 11-22-2010, 01:50 PM

I would return them to store and get NGK Laser Platinum (OEM) or Denso Double Platinum (OEM) instead and both are said to be good up to 100k miles. You may also go with single electrode NGK Iridium-IX, but they last not much more than 30k miles.

Stay away from Bosch plugs (any). I used Platinum+2 in past and despite they were giving me a little better mileage at first over old original Denso OEM plugs, the performance of car was very sluggish.

Some people reported electrode tip (or center ground) getting worn on those Bosch plugs VERY quickly causing improper spark in as little as 10k miles.

***Mister_Perkins*** · 11-22-2010, 01:54 PM

Quote:

Originally Posted by tendency

i can turn the car over but it wont fully catch .. start to backfire then dies. what should i check? double checked all plugs/wires and firing order. thx

Did you pull your distributor cap off? If so it sounds like the rotor is 180 degrees out. Get your motor to TDC and rotate the rotor 180 degrees

You should have just posted this in your other post about the firing order

tendency · 11-22-2010, 02:03 PM

hi - no i didnt replace the distributor just the plugs and wires. when i originally did the job i had two of the wires reversed .. tried starting the engine and got the backfiring that's when i asked about the plug order to double check. so, now i know ive got the right order but still no go.

tendency · 11-22-2010, 02:32 PM

ahhh correct me if im wrong but i dont believe this camry model has a distributor..

tendency · 11-22-2010, 03:13 PM

ok i put the old plugs and wires in and i get the same problem .. car barely turns over backfires then dies. what am i missing? can believe im having this many probs just replacing plugs/wires on this car..

Mike Gerber · 11-22-2010, 03:59 PM

Quote:

Originally Posted by tendency

ahhh correct me if im wrong but i dont believe this camry model has a distributor..

You are correct. Starting with generation 4 in 1997, a distributor was no longer used.

You could have the plug wires out of order. I would double check them. If the old plug wires were the originals, they should have the cylinder numbers marked on them.

I would also check to see that the wires are seated properly on the coil pack ends. If they are not seated properly, they could be arcing between 2 or more of the wires.

Mike

tendency · 11-22-2010, 04:26 PM

Quote:

Originally Posted by Mike Gerber

You are correct. Starting with generation 4 in 1997, a distributor was no longer used.

You could have the plug wires out of order. I would double check them. If the old plug wires were the originals, they should have the cylinder numbers marked on them.

I would also check to see that the wires are seated properly on the coil pack ends. If they are not seated properly, they could be arcing between 2 or more of the wires.

Mike

hi thx for the tips. i have triple checked the wiring and it's correct. it doesnt matter which cables go to which plug as long as the plug is terminated in the correct igniter terminal (or whatever that's called..) correct?

the plug's are numberd on each igniter so that's how im running the wires. everything is seated correctly so im totally stumped at this point.

one other thing i did: i pulled off the airbox and cleaned out the throttle body and squirted a bunch of carb clearner down the IAC hole in the bore..dont think this should have hurt anything but wanted to throw it out there in interest of completeness. thx again