Lift Won't Engage

[dailey87]

Hi

I was driving home tonight and i lost lift completely :(

The car now has no lift and feels as though it hits a limiter at around 7200rpm. No CEL ect, just no lift.

I had changed the lift bolts last week so my first thought was that somehow one of the new bolts were faulty and one had snapped so i took the cover off when i got home and had a look but everything is ok, bolts were tight with no damage at all.

Anyone have any ideas?

I'm thinking a blocked OCV screen but has anyone else had anything similar happen?

Help please :(

[KPARRIS-JONES]

Hi

I was driving home tonight and i lost lift completely :(

The car now has no lift and feels as though it hits a limiter at around 7200rpm. No CEL ect, just no lift.

I had changed the lift bolts last week so my first thought was that somehow one of the new bolts were faulty and one had snapped so i took the cover off when i got home and had a look but everything is ok, bolts were tight with no damage at all.

Anyone have any ideas?

I'm thinking a blocked OCV screen but has anyone else had anything similar happen?

Help please :(

Clean up the OCV, MAF sensor and make sure you get no warning lights because it may be in 'limp' mode, but it would be really bad performance if it was in limp.

Make sure that you didn't accidentally tamper with something when you did the bolts last week. ;) :)

[dailey87]

Hi

I was driving home tonight and i lost lift completely :(

The car now has no lift and feels as though it hits a limiter at around 7200rpm. No CEL ect, just no lift.

I had changed the lift bolts last week so my first thought was that somehow one of the new bolts were faulty and one had snapped so i took the cover off when i got home and had a look but everything is ok, bolts were tight with no damage at all.

Anyone have any ideas?

I'm thinking a blocked OCV screen but has anyone else had anything similar happen?

Help please :(

Clean up the OCV, MAF sensor and make sure you get no warning lights because it may be in 'limp' mode, but it would be really bad performance if it was in limp.

Make sure that you didn't accidentally tamper with something when you did the bolts last week. ;) :)

I cleaned the maf sensor about 2 weeks ago with IPA, it was filthy lol so it's not that.

There are no warning lights at all, it runs perfectly except for the fact there is no lift.

I had been using lift earlier in the evening and everything was up to temp.

I've already checked everything i touched last week and i had no problems until tonight....:(

[KPARRIS-JONES]

Could you maybe try resetting the ECU then?

[dailey87]

Could you maybe try resetting the ECU then?

I will try it!

How do i do that though is it just a remove Battery terminal for 10 mins job or is it more complex than that?

Does the radio need a key aswell because this is somthing i don't have lol

[nrgizerbunny]

could be the bolts?

[KPARRIS-JONES]

Could you maybe try resetting the ECU then?

I will try it!

How do i do that though is it just a remove Battery terminal for 10 mins job or is it more complex than that?

Does the radio need a key aswell because this is somthing i don't have lol

Sorry mate I have no idea.

I do think that there is a specific procedure though. Your local mechanic will have a book that tells you it though. I used it after doing services and it would reset all the lights and stuff. :)

[dailey87]

could be the bolts?

Checked them and lift has been fine since i did them right up until tonight.

[KPARRIS-JONES]

Got any holes in the exhaust system? Anything to throw off the engine?

[LAA69]

Oil level ok ?

[dailey87]

Oil level ok ?

Yep checked it and it is fine

[dailey87]

Hi

I was driving home tonight and i lost lift completely :(

The car now has no lift and feels as though it hits a limiter at around 7200rpm. No CEL ect, just no lift.

I had changed the lift bolts last week so my first thought was that somehow one of the new bolts were faulty and one had snapped so i took the cover off when i got home and had a look but everything is ok, bolts were tight with no damage at all.

Anyone have any ideas?

I'm thinking a blocked OCV screen but has anyone else had anything similar happen?

Help please :(

Bit of an update:

Tried lift a few times this morning and it has returned but it is VERY weak, bearly changes at all but it is there slightly. Sometimes though there is no lift again and it completely fails to engage.

If it does engage very faintly it still feels like it hits fuel cut at 7200-7500rpm and it is not smooth at all. Almost feels as though lift is coming in and out :(

Any ideas?

Does this sound like an OCV fault or what?! :/

[Norfolk n Chance]

Bit of an update:

Tried lift a few times this morning and it has returned but it is VERY weak, bearly changes at all but it is there slightly. Sometimes though there is no lift again and it completely fails to engage.

If it does engage very faintly it still feels like it hits fuel cut at 7200-7500rpm and it is not smooth at all. Almost feels as though lift is coming in and out :(

Any ideas?

Does this sound like an OCV fault or what?! :/

I believe somebody had a similar problem before and it did turn out to be a blocked OCV.

Not using Lift enough can cause the blockage... a good excuse for always using Lift though eh? :D

Try cleaning it up and see it helps

[dailey87]

Bit of an update:

Tried lift a few times this morning and it has returned but it is VERY weak, bearly changes at all but it is there slightly. Sometimes though there is no lift again and it completely fails to engage.

If it does engage very faintly it still feels like it hits fuel cut at 7200-7500rpm and it is not smooth at all. Almost feels as though lift is coming in and out :(

Any ideas?

Does this sound like an OCV fault or what?! :/

I believe somebody had a similar problem before and it did turn out to be a blocked OCV.

Not using Lift enough can cause the blockage... a good excuse for always using Lift though eh? :D

Try cleaning it up and see it helps

Cleaned the lift OCV, the OCV screen and OCV housing today and......

Nothing :( Still the same

Had it ODB2 scanned by a very nice guy at woodsport near durham and drew another blank. No faults to be found on the ECU.

Don't know what else to try but i'm going to recheck the lift bolts again this week but i don't think it can be them.....

Is there anyway that i could have done them wrong? I don't see how i could have, old bolts out - new bolts in

Any more ideas? or is it going to be a expensive trip to Mr T? :(

[farhanali89]

Very very odd.... Its hard to point a fault. What ever the outcome please post back. You hve no faults or anything so its odd why it is not getting any lift. It is however a point to come across....If the car is cold rev cut off is usually at 7200rpm.....seeing as the car is always warm and still not engaging narrow the problem down to a temperature sensor...maybe there is a fault in the reading from a sensor even though your dials show the car has come up to optimum temperature. Besides running around take the car to toyota and complain. But as i said if its limiting at 7200 with no cels and engine warmed up place your guesses on the cooling system or around the water temp sensors. What ever the outcome keep us posted i would like to know why this happens. Lift bolts is fairly simple as long as you hand tightened them and followed the guide. Did you ensure you installed correctly. Also are you certain no part of the previous bolts was broken inside?

[FoxX]

I hope this dont happen when I go and change mine,

Like Farhan said, almost sounds like the ECU doesnt think the oil temperature has warmed enough to engage lift as it only revs to 7200 when the engine is cold. Is there an oil temperature / oil pressure switch or sensor that could be affecting this?

You didnt put the bolts in the wrong way round or anything? :) (i dont even know if thats possible).

[Mr_T_Sport]

I dont want to upset you mate, but i had the exact same problem on my pre face lift! I took it to MR T and he did the ocv and lift bolts but still no lift, i took it back and he checked everything again, still couldnt find anything wrong, i think the diagnostic machine even showed lift engaging but still when driven there was no kick at 6200 and it limited at 7300-7500, i was pulling my hair out! The mrs pursuaded me to just live with it as we couldnt afford to keep taking it to Toyota, anyway the car did this for a few weeks and lift started to come back. It was weak but at least i could feel it and it started to rev to about 7900-8000,

lift gradually got stronger and stronger and for a few days it was running well apart from hitting the limiter at just before 8000, then all of a sudden, no lift at all and it started hitting the rev limiter at 6500! Gutted! Back to Toyota and again they couldnt find a single fault!

I really hope you can find a fix mate even tho i will feel a bit of a plonker if you do as i just gave up on it and traded it in for a facelift t sport

[farhanali89]

Toyota are not to clued up about this engine. Possibly try a specialist give fensport a call. Try another toyota....If possible go to a lotus specialist who works with the exige. Its defo electrical, the lift solenoids all hook up to the ecu and this is not mechanical so my assumption is straight down to sensors or the ecu.

[tccom]

hi,as it works from oil temp you could try the oil temp sensor as it may not be registering 60 degs therefore no lift,worth a try and won't cost the earth to find out.

[Mick24]

If you are not getting the engine management light coming on - it would point to a mechanical problem not electrical (Lift Bolts or one (or both) OCV filters blocked).

Have you had the ECU checked for fault codes ?

Some of the common fault codes are:

P0100 ~ MAF

P0110 ~ Air Intake Temp

P0115 ~ Coolant Temp Sensor

P0128 ~ Thermostat Malfunction

P0325 ~ Knock Sensor

P0340 ~ Camshaft Sensor

P0335 ~ Crank Sensor

Mick

[dailey87]

Thanks for all of the bits of advice guy it's all been fantastic!

I thought up a test to see if it was a temp sensor problem today and it seems it isn't.

Basically i tried to lift before the engine was warm enough to allow it and the character of the temperature dependant rev limit and the way the revs passed the lift engagement point was totally different. (before anyone says i realise that this is very bad for the engine but it was only once and for a VERY good reason, my car is never subjected to this kind of treatment normally EVER)

I then called fensport who put me in touch with a guy in Leeds who knows the engine well and if fensport think he's good well that's good enough for me! He is convinced it is related in some way to the lift bolt holes being deformed, allowing whatever they hold in place to slip and rotate.... over my head now tbh.

I'm going to give him a call tomorrow and take it down to him asap, hopefully he can find the fault, he certainly sounded like he knew his stuff (Unlike the Toyota tech i spoke to who had "never heard anything like it" )

I'll keep everyone updated, just incase anyone has a problem like this again :)

[Norfolk n Chance]

Where you going in Leeds??

[FoxX]

He will just be talking about the rocker shaft as described in the toyota TSB regarding lift bolt replacement. - http://www.celicahobby.com/tech/tsb2/TSB_liftbolts.pdf

Never heard about this happening before though, I guess he means your bolts arent securing the rocker correctly as they should due to a deformed hole perhaps in the rocker itself?

[dailey87]

Where you going in Leeds??

YVS is their name - it's LS25 postcode so outside leeds really. A Quick google search and it seems they are very highly thought of!

He will just be talking about the rocker shaft as described in the toyota TSB regarding lift bolt replacement. - http://www.celicahobby.com/tech/tsb2/TSB_liftbolts.pdf

Never heard about this happening before though, I guess he means your bolts arent securing the rocker correctly as they should due to a deformed hole perhaps in the rocker itself?

Yep that's what he thinks it is but we shall see, After speaking to him again today it seems it isn't the most common of problems but he has seen it happen before with a celica TS.

Either way i have a good feeling the fault will be found and put right, whatever it turns out to be :)

[farhanali89]

Good news! lets hope it is that so any future lift problems can be resolved. If this works please post the information of the gentleman you are going to see.