f22a6?

[ASTCB7]

ok if i am at a junk yard how can i tell the difference between a f22a1 than a f22a6 ecu or camshaft?

[Leung]

A6 ECU will say PT6 and i'm sure the cam will have the same scribed into it.

A1 and A4 will say PT3.

[Hondapawa]

ok if i am at a junk yard how can i tell the difference between a f22a1 than a f22a6 ecu or camshaft?

F22A6 has a more agressive camshaft, a better ECU, a better intake and a better header than the F22A1. As for the rest, i dunno...

You just have to look on the engine bottom, you will see what engine it is...

[Ander]

I thought the a6 and a1 header are the same?
Isn't it just the a4 header that's tubular and different?

[Hondapawa]

I thought the a6 and a1 header are the same?
Isn't it just the a4 header that's tubular and different?

I've heard that A6 header was better than the A1 But it was kinda the same of the A4.

[CappuccinoLX]

he's not asking about the differences in performance, he's asking about the visual differences, maybe he's looking for replacement parts...

[Ander]

I'm almost positive the a1 and a6 header are identical.

[ExplodingCake]

I'm almost positive the a1 and a6 header are identical.

In material construction , yes. Design , no.

[Ander]

Ah mkay.

[ExplodingCake]

Ah mkay.

Only the A1 was 4-1 , whilst the A4/6 are 4-2-1.

[cb7_reverand]

before you even start to pull back the carpets, kickpanels and removing the valvecovers. Check the engine code stamping on the engine itself. More than likely no one is going to be putting an A1 ecu in an A6 engine. If the code on the engine is not stamped f22a6 move on, dont waste anymore time looking at the car. If so, begin your search to check the ecu codes, and removing the upper front timing cover to see the stamp on the camshaft gear. Same code for the ecu should be on the cam gear.

if this is too elementary sorry, but good tips to speed up jy searches.

[Hondapawa]

he's not asking about the differences in performance, he's asking about the visual differences, maybe he's looking for replacement parts...

Yeah i know it was to help him getting better parts for is engine, considerring it is a A1...

[deevergote]

before you even start to pull back the carpets, kickpanels and removing the valvecovers. Check the engine code stamping on the engine itself. More than likely no one is going to be putting an A1 ecu in an A6 engine. If the code on the engine is not stamped f22a6 move on, dont waste anymore time looking at the car. If so, begin your search to check the ecu codes, and removing the upper front timing cover to see the stamp on the camshaft gear. Same code for the ecu should be on the cam gear.

if this is too elementary sorry, but good tips to speed up jy searches.

Thank you for being the only one to offer any significantly helpful information.


The F22A6 camshaft will be in an F22A6 engine. The block will be stamped F22A6. You can be pretty certain that the camshaft will be what you want.

The ECU will say PT6.

You will find these things in 1992-1993 EX models, or the 1991 and 1993 SE model.

[ASTCB7]

alright coool i really don't know a lot about cars and want to try to know so. what is a camshaft and where is it located? will it be hard to install?

[deevergote]

If you're asking that question... yes, it is beyond your ability.

Honestly, your best bet is to a) buy a repair manual for your car, or download the manuals linked in the stickies at the top of this section... and read them. b) use Google and www.howstuffworks.com. I'm not suggesting these things as a cop-out... just that you'll get a much more thorough understanding from one of those sites about how an engine works, and what the parts do, than any posts on this forum will do for you.


A brief answer to your question is that the camshaft is a rod with bumps on it. It turns, and the bumps open the intake and exhaust valves of the engine. Change the size of the bumps, change the function of the camshaft.