1. I assume that the previous owner was trying or attempting to delete the secondary air injection. This isn’t a requirement to install the cold air intake. You would need to remove the exhaust manifold to see if the plugs were installed to delete or bypass the secondary air injection ports.Hi all, I've recently bought a 2005 Corolla T-sport 190 VVTLI in the UK that needs a bit of care and attention and information on these cars is becoming very hard to come by, almost like the info is being purged from the internet - I'll try to upload some photos later to support my thread, but basically I have noted these issues so far:
1. The car has an Injen type aftermarket intake on it, so no factory airbox. It also looks like the previous owner has messed around with the secondary air intake/pump system as I can see a number of blanked off vac pipes and possibly a resistor in there too, it looks a bit like spaghetti junction and a mess. Anybody know if this is required when fitting an aftermarket intake or do you think the previous owner just wanted to bypass the SAI system for some reason?
If I wanted to return it to standard in this area, can I simply buy the intake pipe and airbox and swap over - I'm not entirely sure how all these pipes and vac hoses are configured normally. Does anyone have any diagrams / guides for both the SAI system and the airbox/intake pipe?
2. The engine seems to run really nicely when on the move, goes into lift etc but upon cold startup, it has a very lumpy idle and the exhaust shakes quite a bit underneath, the rpm also sits at around 1500rpm for a long time - where do I start to investigate this issue? Is this likely caused by secondary air intake being messed with?
3. The gear change is really hard to decipher - what I mean is it doesn't seem to sit in the middle of the gear gates, but over towards 5th and 6th gear, so I have to go quite far over to the left to get 1st/2nd, this makes it really hard to work out which gear I'm selecting - conversely, when moving into 5th and 6th I barely have to push the gear lever over to the right, which makes it feel like I might reselect 3rd or 4th gear. It goes into gear quite nicely, but is not very precise - what should I investigate for this issue? Is there a way to reset the gears so the gear lever finds the natural centre between the gears, in between 3rd and 4th normally I presume? Oh and how do I disconnect that awful beeping in reverse??
4. There is a crappy aftermarket stereo in there, which means I don't have any trip/MFA data and the steering wheel controls don't work. If I buy a 2nd hand original stereo, do I need a code for it? Most sellers state they don't have a code.. Alternatively, is there an aftermarket stereo that gives the trip/MFA display like the factory option?
If anyone is in the UK and has any original parts for sale that can rectify the above, please let me know! 👍👍
The secondary air injection is solely for cold starts.
2. can be related to issue 1.
3. Inspect the shifter cable ends for deteriorated shifter bushings. The oem rubber inserts wear. Monkey wrench racing or torque solutions sells delrin or brass shifter bushings to improve the shifter.
You can remove the gear selector on the back of the transmission to service it.
4. Toyota head units are not like Honda head units with codes. You can simply plug it in. Suspect the previous owner did not opt for the steering wheel control module when the head unit was upgraded.