sj408

iTrader: (6)

well first off whens the last time you had a good tune up? meaning distributor cap/rotor plugs and plug wires. my sc300 was experiencing the same problem.... first i replaced the cat for 400 bucks and that wasnt it... then did a tune up and all was well..... do a tune up

sc4002soar

check ur coils

sc-driver

iTrader: (7)

might be ur MAF too. try taking it out and using a maf cleaner on it to see if it makes a difference. A contaminated maf will make ur engine run richer then normal.

Toshima

I have this same problem on my s13. So please post it up when you find out whats wrong.

ChronoJ1

iTrader: (2)

Yup, it was the ignition coils. I had the coils and plugs changed. Now the car runs better than ever.

LeMoine

Would it be wise to replace this since I am nearing the 200k mark ?

ChronoJ1

iTrader: (2)

I would think so. Mine went out at 150k.

92400

Just wanted to say thanks. i was changing my coolant temp sensor and plugs ran into the thread describing huge loss of power, which described my problem to the T I placed all of the old parts back and still the problem strong gas smell lack of power. Today I took my car to a ,shop, they indicated my cats were clogged o.e only available cost $3300. Ipectfully declined and picked up my car (25 mph hotter than hell) actually drove to look at another SC today but was not quite the same as mine that i've owned for 6 years. stumbled across this thread, decided to check the coils. pulled right wire from distributor car ran same pulled left car died and would not start.....coil
All I can say is take the test thanks everyone for saving$$$$ and my ride going to look for coil B tommorrow.

AyDee

100 percent dead ignition coil

92400

Well I changed the one ignition coil i identified as the problem. Getting those 4 little screws from the coil to the bracket consumed the most time in the install.reconnected fires right up, runs great. still a little stumble when maf connected another problem alltogether.
If someone has positively identified the weird small missing thing with the maf connected please respond. disconnected runs fine just lacks good shifts, upshifting and some power loss. Bought a MAF on Ebay no difference.

sydwys

Gotta love these forums. This morning, my car lost a bunch of power suddenly. I limped it home for about 1 mile. The cats were red hot and smoke was coming from under the chassis. It was indeed the ignition coil - the one in front of the left exhaust manifold. Picked up the part at Kragen for $60.99, installed it in 10 minutes and called it a day. The only damage suffered from the excessive overheating is something getting loose in the exhaust system and rattling around. I will do a few spirited runs and see if it will work itself out. I really don't want to pull the exhaust apart.