Oem coil or universal coil, Does it matter?

[ZMARKUS]

My Q finally told me which cylinder is acting up. I'm going to be buying a coil and plug for cylinder#1. I'm looking for the best price on a coil and noticed other brands carry this coil. Are the universals cool to get.

[maxnix]

Are you feeling lucky?

How many miles and years did OEM last?

[StarPD]

My Q finally told me which cylinder is acting up. I'm going to be buying a coil and plug for cylinder#1. I'm looking for the best price on a coil and noticed other brands carry this coil. Are the universals cool to get.

Your Q is now 9 years old, and you're going to replace only one coil and plug? Are you a masochist?

Buy a couple of spare coils and a full set of plugs. Replace all the plugs first. Be sure to use ONLY OEM plugs, or you'll probably regret it. It's a lot of work to have to re-do that job because you tried to save a few bucks on cheaper plugs. Ask the guys here who have learned the hard way. Same goes for coils. Use OEM and you don't have to worry about whether the cheaper aftermarket ones are any good or will soon fail again. If you still have a problem after that, replace #1 coil and keep a couple for spares. One at a time, they will eventually go out, and if you have them already on hand, it'll be a lot easier to just replace any bad ones. If that doesn't cure your problem, get to work checking out the injectors.

Your car is, as I said, 9 years old. It is going to need parts and labor to keep it as new. Not many cheaper aftermarket parts are going to last you 9 years or more. Ask Dennis (Q45 tech) about using cheap parts. No one knows more about Q45s than he does.

[bullittandy]

I'll sell you a used coil for a very good price......

[GseaQ]

I replaced 1 about 4 years (60,000 miles) ago on the '92. Now a second one is bad at 195,600 miles, so they seem to be pretty long lived. I just bought a full used set from a '96 for less than the cost of 1 new coil. Ya pays your money and ya takes your chances. The engine was supposed to be running fine on the donor car, but if even half of them are good, I'm happy.

[GseaQ]

Oops, yours is a '99 so my post may be irrelevant.

Glenn

[oldmako]

Oops, yours is a '99 so my post may be irrelevant.

Glenn

Don't sweat it Glen, most of my posts are irrelevant! Bourbon does that to me.

[dodiho]

BA---Doug in Texas here...do you have a used '99 Q45 TCU? the "stealership" wanted over $1000 for a new one in Dallas.....this is the unit that effects the ABS/SLIP/TCS lights...correct? Am I calling it by the right name? They told me it was shorted out by two wires touching in a harness....any of you other guys jump in here....help me out!!!! Thanks!