Problems with my Eunos when trying to max it out
Problems with my Eunos when trying to max it out
Author
Discussion

mAxiecAm

Original Poster:

26 posts

187 months

Sunday 22nd August 2010
quotequote all
I bought a 1992 1.6 Eunos in March last year and it is a little gem. It runs fantastic and is quite nippy through the gears with no issues.

However, when I, on the rare occasions, want to open it up I have major problems when I try to exceed 110mph.

It's as if it suffers with complete fuel starvation and the car jogs like crazy until I let off the throttle a bit and drop the speed to about 110 on the clock.

It is a Japanese import but I didn't import it. The guy who did, unfortunately died and his son sold it to me not knowing anything about the car or what had been done. My brother mentioned that the Japanes governed their cars and it could be this that is causing my troubles.

Is this true? - If so, how can I get the governing removed?

Any help would be greatly appreciated because I LOVE the car otherwise and it does spoil the fun a bit.

Slinky

15,704 posts

272 months

Sunday 22nd August 2010
quotequote all
There is a screw to remove from the speedo.. have a look on Miata.net for details..

MrV

2,748 posts

251 months

Sunday 22nd August 2010
quotequote all
Tried to find a pic for you but my google fu let me down

To get rid of this limiter, you have to remove a screw from the printed circuit board behind the speedometer.. Looking at the printed circuit board , there are two big multi-connectors ,each with 12 connections. They are labeled 'a' to 'l' and 'A' to 'L'. The 'G' connection is marked 180kp/h sw and, if you follow it up the board, it leads to a screw. Removing this screw disables the speed limiter.


Zebrano

820 posts

238 months

Sunday 22nd August 2010
quotequote all
MrV said:
Tried to find a pic for you but my google fu let me down

To get rid of this limiter, you have to remove a screw from the printed circuit board behind the speedometer.. Looking at the printed circuit board , there are two big multi-connectors ,each with 12 connections. They are labeled 'a' to 'l' and 'A' to 'L'. The 'G' connection is marked 180kp/h sw and, if you follow it up the board, it leads to a screw. Removing this screw disables the speed limiter.
This any good?


mAxiecAm

Original Poster:

26 posts

187 months

Sunday 22nd August 2010
quotequote all
Thanks very much for the info chaps smile

Hopefully I will get a few more mph on top end now. What can I expect as a top end speed on an 18 year old mk1.

mAxiecAm

Original Poster:

26 posts

187 months

Sunday 22nd August 2010
quotequote all
Zebrano said:
MrV said:
Tried to find a pic for you but my google fu let me down

To get rid of this limiter, you have to remove a screw from the printed circuit board behind the speedometer.. Looking at the printed circuit board , there are two big multi-connectors ,each with 12 connections. They are labeled 'a' to 'l' and 'A' to 'L'. The 'G' connection is marked 180kp/h sw and, if you follow it up the board, it leads to a screw. Removing this screw disables the speed limiter.
This any good?

I can see where the yellow tape has been placed to cover where the screw was removed on the line in question but my curiosity notices a second screw hole been covered by a similar piece of tape - is that anything I need to know about?

NeoVR

437 posts

194 months

Sunday 22nd August 2010
quotequote all
mAxiecAm said:
Thanks very much for the info chaps smile

Hopefully I will get a few more mph on top end now. What can I expect as a top end speed on an 18 year old mk1.
IIRC someone here managed a massive 114mph (GPS) with a de-restricted 1.6 on a Vmax day lol - so in answer to your question... not very much!

Although the speedo is usually massively inaccurate on these cars.. so dont be suprised that your 110mph displayed is much over 100 real speed..

OllieWinchester

5,695 posts

215 months

Monday 23rd August 2010
quotequote all
My speed limiter kicks in at a GPS 110 MPH, and on certain downhill sections of the M3 a private race track it certainly seems to thump into it with some force! Loads of revs left to go too, I reckon on a slight incline it would be good for a GPS 120mph, probably indicating loads more though.

Is it relatively easy to get the dash off to get at the speedo? If so I might have a crack at it and see what she'll do on, err, my track.

mAxiecAm

Original Poster:

26 posts

187 months

Monday 23rd August 2010
quotequote all
NeoVR said:
mAxiecAm said:
Thanks very much for the info chaps smile

Hopefully I will get a few more mph on top end now. What can I expect as a top end speed on an 18 year old mk1.
IIRC someone here managed a massive 114mph (GPS) with a de-restricted 1.6 on a Vmax day lol - so in answer to your question... not very much!

Although the speedo is usually massively inaccurate on these cars.. so dont be suprised that your 110mph displayed is much over 100 real speed..
I was thinking on similar lines - I can understand the speedo will not read the correct speed and I am sure, with the age of the car, the BHP will be somewhat down from when originally built. I will take the screw out on the first sunny day I get though. I don't thrash the car because of it's age and, as far as cars go, this is perfect for me. Like others on this forum, if I want real speed and fear I'll just get my bike out.


It's still a gem of a car though smile

HereBeMonsters

14,180 posts

205 months

Monday 23rd August 2010
quotequote all
I feel so dumb. I've been trying all sorts of different fuels, fuel additives, checking leads and spark plugs etc. as I've had this issue (on track). Bloody limiter!

Is is actually easy to remove, or shall I get AutoLink to do it next time it goes in for something?

NeoVR

437 posts

194 months

Monday 23rd August 2010
quotequote all
HereBeMonsters said:
I feel so dumb. I've been trying all sorts of different fuels, fuel additives, checking leads and spark plugs etc. as I've had this issue (on track). Bloody limiter!

Is is actually easy to remove, or shall I get AutoLink to do it next time it goes in for something?
On the 1.6 it is just this screw that cuts off the fuel pump...

On the 1.8 i believe the limited is intergrated into the ECU although im not entirely sure how thats possible if the speedo is cable-driven.

I think i might test this theory some point wink