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-   -   extra gas tank or resevour of some type? (https://www.nopistons.com/2nd-generation-specific-17/extra-gas-tank-resevour-some-type-58928/)

stevengood 04-26-2006 06:40 PM

on the passenger side of the engine bay, againt the firewall there is a small tank (white) in my 88 s4 n/a and i was wondering what i should put in it. there is a pump on it and a hose witch runs into the intake manifold; gas or what goes into this tank? https://www.nopistons.com/forums/pub...IR#>/blink.png

Volksjager 04-26-2006 06:49 PM

this is a cold start assist resovoir. it would normally have anti-freeze in it and on cold day it would inject anti-freeze into the intake manifold. Mazda had a TSB on this and discontinued it. you should disconnect it and remove it. also if you want you can remove the injector. Banzaitoyota sells a block off plate for it

stevengood 04-26-2006 07:05 PM

oh thats what it is thank you.

1988RedT2 04-26-2006 07:44 PM


Originally Posted by Volksjager' post='816226' date='Apr 26 2006, 06:49 PM

Banzaitoyota sells a block off plate for it





Can this be true? I may wish to acquire one of these.

Volksjager 04-26-2006 07:46 PM

i just bought a whole set of block off plates from him on Ebay. i guess the cold start assist plate is a new offering

skaterturtle13 04-29-2006 12:06 AM


Originally Posted by Volksjager' post='816226' date='Apr 26 2006, 03:49 PM

this is a cold start assist resovoir. it would normally have anti-freeze in it and on cold day it would inject anti-freeze into the intake manifold. Mazda had a TSB on this and discontinued it. you should disconnect it and remove it. also if you want you can remove the injector. Banzaitoyota sells a block off plate for it

do you know what year they discontinued this?

Volksjager 04-29-2006 05:59 AM

im not positive but i think 88 was the last year they used this. i removed mine from my 88. i dont see what the point is of injecting anti-freeze into the intake is. how in the hell does that help with cold-starts? one would think injecting a non-flamable liquid into the engine would impede starting.

QuackDamnYou 04-29-2006 07:15 PM

It builds compression

QuackDamnYou 04-29-2006 07:15 PM

It builds compression

1988RedT2 04-30-2006 12:13 PM


Originally Posted by Volksjager' post='816561' date='Apr 29 2006, 05:59 AM

im not positive but i think 88 was the last year they used this. i removed mine from my 88. i dont see what the point is of injecting anti-freeze into the intake is. how in the hell does that help with cold-starts? one would think injecting a non-flamable liquid into the engine would impede starting.



Well, it was something that Mazda used for quite a while, since my '73 RX-2 had it also.


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