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Normally extra air in system that ecu is trying to correct then fails as readings are ether correct, leak, or faulty unit giving incorrect values. The problem is finding which or what is the problem.
smoke test from air filter to chamber no leaks.
run and record live data of driving vehicle from start to finish a lot of data to go through, several runs so all factors are covered.
Noone has a smoking machine in my area, mechanics aka monkeys. The ECU should be fine as it had no problems before the timing chain when instead of being careful when moving out of the way he just yanked them instead of removing a few clips and a few more bolts, f monkey.Originally Posted by Jon1796
What i'm thinking of keep on checking will be the LPG instalation vaccum line to the intake, maybe the monkey when remounted the valve cover nuked them. The monkeys said it's the MAF sensor because it reads too much. I was saying to them that of course its reading is out of scale when there's a vacuum leak and ECU trying to compensate that to not stall. I have unplugged the maf sensor and the engine runs worse, way worse, so all i can say the MAF is not faulty here.
If you can then block that vac pipe see what happens improve or no different, find second hand maf, see if it makes difference, if not you still have a spare for when it does go wrong….it will.
If you can then block that vac pipe see what happens improve or no different, find second hand maf, see if it makes difference, if not you still have a spare for when it does go wrong….it will.
Unfortunately a used MAF is about the same price as a afm new one. I really wish that i could find a used one in my area just for a test but unfortunately there are non at the junkyard since they only have diesels. What i will do is unplug each connection and block it, that way i might find the issue because i have already unplugged the vacuum pump connection and the car starts to rev itself to 1500 rpm slowly then fall down to 850 then back up again and so on, so this might be a sign.
To do:
1. the vacuum issue but i tend to believe that it might actually be the positive cable from the alternator or even the alternator itself since it struggles from this morning to charge over 13.8 and when i steer+brake the voltage drops under 13V at low speed or even dies, but first i will put a battery from another car as a test to see if it changes anything, maybe it's just the battery that is dying wich is odd since it was already replaced in february but it's a knock off nothing too serious about it(no bosch, varta, exide etc)
2. 2 new tires
3. fix the clutch mess, most certainly i will replace the clutch, so more money, more fun, the piggybank is getting thinner and thinner
4. rear windows tint but not something ludracrous but only a bit more darker since i already have 70% transparency from the factory even tho i would have preffered to be lower on the rear windows like on astra h, astra j
Today: glued the handle for the small drawer near the gearshift as it was broken, moved a lpg hose from the oil cooler to the cabin heat exchanger. The cooling issue has been fixed. The temp raised up by 30 C in like a bit over half a mile. And since i was in town with business i went to a MOT independent service for a checkup, brakes are performing exceptionally well, the gas result is very good aka good as brand new car, but i have a oileak from the crankshaft seal towards the gearbox and from the driveshaft wich means 99% a new clutch. As a sidenote question: does the clutch from the 2.8 L engine fits on the z20net without having to replace the flywheel? Or does it even fit on the 2.0 if i will replace the whole kit(flywheel, clutch kit, pressure bearing, bolts)?
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LPG hose before 1
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LPG hose before 2
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LPG hose after
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Brake test results
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Last edited by horaa; 6th June 2022 at 14:43.
Today was a nice day for a good fitness workout, i finally decided to vacuum the car and do a bit of interior washing. A window bottle, some soap, some water, a good shoe brush(doesn't scratch the plastic) goes a long way. I didn't apply any plastic restoration or silicone since i really hate the brigther color of it. I'm not gonna pay anyone to do a full interior detailing so i am very happy with the result. So today was a good day for me, except for the clutch news but that's just bad luck i suppose.
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Window tint removal
northpole liked this post
I was looking at static window tint films the ones that don't use glue and can be easily removed, but haven't found it in the shade I want (static ones can be removed and re-applied)
I just read about them, their lifespan is really short unlike the normal tint that is around 10 years or more
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