Hot Start fix Side effects

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jwaldron

jwaldron

New Member
Posts
284
Location
YNYS MON (North Wales)
Guys... I Seam to be a serial poster now I have a P38..:(

I've recently fitted a Hot fix (off ebay). Connected it to a blue/grey trace to ECU (I did find three blue traces. One with Brown, one with Grey and one with white)... does that make sence? I used the Blue/grey as per instuctions.

I then connected the power up to the red/white trace and the black earth as per instructions using the supplied connectors. I think the connectors made contact.

Imeadiatly after fitting; the car now starts well when warm. Not like she did before i fitted it (took a good 9 to 10 sec before).

Now however - she seams to stick in gears no wanting to change and holding the revs all the way up. This is perticulary noticable from 2nd to third!!!

I stoped out of frustration and moved the gear selector from Drive to Park and all the way through to 1st and back again a few times.... then she seamed to be fine... it could have been this or just a time issue - I don't know.

Is this somthing to do with the hotfix possably or the gearbox? If either - how the hell do I fix it? Could it be the timed relay not switching off and the car somehow thinking she's cold?

I've also noticed the MPG on the computer is about 4mpg less than I was getting before I fitetd it. Anyone else with any side effects other than a good warm start????
 
Last edited:
The thing about the P38 is, you do get one time glitches on it (i say one time sometimes its s few times) then they seem to clear for the same reason they appeared in the first place, in other words for no apparent reason, give it a bit of time
 
jwaldron said:
Guys... I Seam to be a serial poster now I have a P38..:(

I've recently fitted a Hot fix (off ebay). Connected it to a blue/grey trace to ECU (I did find three blue traces. One with Brown, one with Grey and one with white)... does that make sence? I used the Blue/grey as per instuctions.

I then connected the power up to the red/white trace and the black earth as per instructions using the supplied connectors. I think the connectors made contact.

Imeadiatly after fitting; the car now starts well when warm. Not like she did before i fitted it (took a good 9 to 10 sec before).


Now however - she seams to stick in gears no wanting to change and holding the revs all the way up. This is perticulary noticable from 2nd to third!!!

I stoped out of frustration and moved the gear selector from Drive to Park and all the way through to 1st and back again a few times.... then she seamed to be fine... it could have been this or just a time issue - I don't know.

Is this somthing to do with the hotfix possably or the gearbox? If either - how the hell do I fix it? Could it be the timed relay not switching off and the car somehow thinking she's cold?

I've also noticed the MPG on the computer is about 4mpg less than I was getting before I fitetd it. Anyone else with any side effects other than a good warm start????
Click to expand...

If the hot start fix you bought is not the timed version, then it will hammer your fuel consumption and eventually knacker your engine as it will be constantly overfuelled:eek:
 
thats the timed relay one, i do know what you mean about it holding the gears, i noticed with mine after i fitted the hot start, but didnt think much of it and i only really notice it every now and then.
 
jwaldron said:
It was thought to be the timed version (Here).

Is there a way to check it?

What baout the symptombs fo the holding onto gears... is this connected you think?
Click to expand...

The holding gears is more likely a sticking governor. Box filter change and new ATF may help.
 
i fitted a hot start fix kit and agree with the odd sticky moment but think the fact it starts everytime its worth it but i did notice my mpg doppped by 4-5. didn't realise there was a gear box filter tho could any one point me in the right direction, is it an easy replacement mike
 
twinspoots said:
i fitted a hot start fix kit and agree with the odd sticky moment but think the fact it starts everytime its worth it but i did notice my mpg doppped by 4-5. didn't realise there was a gear box filter tho could any one point me in the right direction, is it an easy replacement mike
Click to expand...

Gearbox filter is attached to valve block in sump. Easy IF you have correct tools. Get oil warm, drain, remove sump. Remove filter (good torx socket required) fit new filter replace sump. Refill box. Filling varies depending on which box you have, upto 1999 dipstick, 1999 on no dipstick. See RAVE for filling instructions. Don't be tempted to fill as per dry fill capacity. It takes around 5 litres for refill not the 9.7 litres quoted for dry fill. There are parts of box that cannot drain. Filter/gasket kits cost around £12.50. Shop around.
 
jwaldron said:
So would the MPG drop correlate to the vehicle running on 'Cold' and could indicate that the relay is not switching over?

How do you check the relay is switching off?
Click to expand...

With the engine hot you should get heater lamp, then when started engine should run at a slightly higher tickover until relay switches off.
 
Update:

Having had it happen again.. this time I noticed that is you came off the accelerator the engine would change down and engine brake.. so when I got home, I took the bloody hot start fix off.

Went for a run and instant change!!! Back to normal! Revs change as they did before, and the MPG instantly gained (well almost instant) about 5mpg according to the computer that is.

I examinded the wires on the blue connectors used.... and noticed that it had not bockedn the insulation around the wires correctly. The Black earth had not been touched, the blue wires (box from earth) had not been touched and the red/white had only just been touched with the brown (box wire again not touched).

So - It looks like the fix was not fitted corectly (shame on me)... I'm currently researching conenctors to use. My question is now (in order to understand) is what on earth was going on? it looks like the splise from box into ECU trace was ok. The glow plug relay had half done it, but not the feed back from this to the box nor the earth feed.... was she running on cold setting?
 
Ahh... I also double checked the auto box oil level... the bloody thing is half way up the dip stick (that can't be correct) can it)... what effects will too much oil have?
 
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