I have a 99.5 1.8t Q Tip, my engine started miss firing last night, i got three engine codes:
P0301
P1136
P0441

I've been told to change the spark plugs and the coil packs
which set of coil packs should i buy
http://www.ecstuning.com/stage/edpd/...ry=Electricial

and where to get the spark plugs from that will work best with my car???

 

P0301 is misfire cyl 1
P1136 is MAF or vacuum leak
P0441 is Evap system purge valve (or vacuum leak)

Check that all connections are tight, no vacuum leaks. Check the vacuum hoses that run to the EVAP valve which it attached to the air filter box.

Before you replace the coil packs, check for the vacuum leaks. Clear the codes and switch the coil pack to another cyl and then check for codes. If they misfire has moved to the other cyl, you will need a new coil pack.

 

thanks i just hope this wouldnt run my pockets i am broke.......

 

coil pack is about 25 dollars

 

and it is better to replace all four at once i could only get three new coil pack so i changed 3 coils and 4 sparks plugs after 2 of my coils failed the two days later the one i didn't replace failed and tosed to spark plug so i then had to get another set of 4 spark plugs

 

You need to do a little more trouble shooting before you change out all this stuff.

Do what david suggested and swap the coil pack and post back here the results.

 

I got the same engine misfire code but not the vacuum leak or purge valve. Once we determined it wasn't plugs or coils it ended up being the Ignition Control Module. Bosch makes one that is rather expensive but there are other brands out there. Very simple to replace.

 

well my wires are screwed and i dont think i could fix it do they make a coil pack wire set??




the previous owner had a crappy job done...

 

WTF? That sure can cause misfires.

 

Well damn dude, there is your problem.

exposed wires = bad news

get that fixed asap, and your problem should go away.