Author Topic: C20XE Ignition Problem  (Read 2121 times)

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Offline StefanWylde

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Re: C20XE Ignition Problem
« Reply #15 on: April 06, 2018, 12:16:32 PM »
Have you bought the calibra with this fault or was it running perfectly and developed this fault, you haven´t said.

The timing belt can be checked with cover off and the No 1 piston at TDC (piece of wire in the sparkplug hole to get the piston TDC), marks at the cam sprockets to head should line up.

I bought it with this fault. At first the idle speed was erratic but the TPS wasn't working on idle. I replaced the TPS, but now the ignition still has a problem

Offline electric geen

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Re: C20XE Ignition Problem
« Reply #16 on: April 06, 2018, 12:52:32 PM »
Whoa! all bets are off. It could be a bitsa, bit of this , bit of that car. Check the model number and serial number of the ECU make sure it hasn´t come from anywhere else but a Calibra otherwise it will have a different program. Go back to the seller if possible and drill down to what happened (really happened) to make the car run badly, any parts he took off and changed may still have laying around, ask for them as he won´t need them.

Offline StefanWylde

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Re: C20XE Ignition Problem
« Reply #17 on: April 06, 2018, 23:57:15 PM »
Whoa! all bets are off. It could be a bitsa, bit of this , bit of that car. Check the model number and serial number of the ECU make sure it hasn´t come from anywhere else but a Calibra otherwise it will have a different program. Go back to the seller if possible and drill down to what happened (really happened) to make the car run badly, any parts he took off and changed may still have laying around, ask for them as he won´t need them.

the seller was an old guy that also bought the car with the problem, drove it without paying any attention to the problems, it seems it didn't bother him. he doesn't know much about cars.

Offline electric geen

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Re: C20XE Ignition Problem
« Reply #18 on: April 07, 2018, 01:01:54 AM »
You can't go back to the previous owner, lets hope the calibra wasn't messed around with before he bought it.

The timing belt , you need to look at the crankshaft timing marks and the cams sprocket timing marks, get a cam block (is that the right term) that prevents the cam from moving and set No 1 piston to TDC. It sounds complicated but all you have to do is take of the cambelt cover, the cam cover and observe. One or two teeth out will give you the symptons you have without the valves touching the piston. The excessive advance on idle and then flat response with a distributor and closed loop lambda would be to much for the ECU to correct. You have to check the cam belt (cam sprocket and crankshaft sprocket)with respect to Top Dead Centre on No1 piston to go forward. At the same time look at the distributor rotor arm and ensure it is pointing at No1 pistons spark plug lead.

I worked in a Motorhome dealership for a while where the mechanics used to change cambelts, missed the timing and then started the engine and heard a driiiiiinnng as the valves touched the piston, what they did was to floor the accelerator to dent the pistons with the valves to stop the noise - and these were "professionals" enough said.

Offline electric geen

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Re: C20XE Ignition Problem
« Reply #19 on: April 07, 2018, 01:27:46 AM »
I remember partially from when I had a Calibra 16V ecotec around 12 years ago, I changed the cambelt but did not need a cam block that was for an alfa which needed one because the cam sprocket could rotate, I believe the Calibra ones are fixed , just need to align the marks on the cam and the crank and check the distributor position.

Offline StefanWylde

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Re: C20XE Ignition Problem
« Reply #20 on: April 07, 2018, 08:56:41 AM »
I remember partially from when I had a Calibra 16V ecotec around 12 years ago, I changed the cambelt but did not need a cam block that was for an alfa which needed one because the cam sprocket could rotate, I believe the Calibra ones are fixed , just need to align the marks on the cam and the crank and check the distributor position.

The Calibra is a combination of 100 vehicles. Chassis was a 4x4 Turbo originally, the rear differential is still cruising with me, the engine was originally distributor-less but for some reason they put a distributor on it. The engine wiring is from a Kadett E GSI. However, I asked the guy that owned the car before the old guy, and he was saying that it's the best engine in my country, and that when he owned it the car was faster than a 140HP BMW E30, which is very lightweight. Now I'm losing a race from Astra G X18XE1 (116hp) easily. Nobody knows what's happening.

Offline electric geen

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Re: C20XE Ignition Problem
« Reply #21 on: April 07, 2018, 14:16:17 PM »
The previous, previous owner doesn´t look like he´s going to "fess up"
Seeing that you from Macedonia, I would guess that calibra´s are pretty rare in that part of the woods. You have a few options,

1. Find another 16V Calibra cheap, either crashed damaged or blown engine, swap the parts. Sell the rest make your money back.
2. Find a late tatty Cavalier 16V or Astra 16V or Vectra A 16V, swap parts (if they are 1.8 hang to your fuel injectors) Sell the rest make your money back
3. Find a rolling road tuning company/guru who is willing to take a look (don´t to be surprised if they turn you down). Hand over all your cash
4. Fit a different engine/gearbox combination inline using the rear drive. Purists will be shaking their heads at this point, but a Calibra on the road is still a Calibra. A lot of work but could be cheap if you get the right engine. Sell the rest make your money back.

No 3 is worth checking out before you pick any other option

Offline electric geen

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Re: C20XE Ignition Problem
« Reply #22 on: April 07, 2018, 14:27:09 PM »
One option I did not mention is the fly drive.

5.  Buy a Calibra off ebay for £5-800, fly here, drive back, swap the bits, sell the rest.

You should be able to buy any Calibra in any country in Europe through ebay. I had a Calibra from Italy so there are a few there just a ferry to get for you.

Offline StefanWylde

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Re: C20XE Ignition Problem
« Reply #23 on: April 08, 2018, 08:40:01 AM »
One option I did not mention is the fly drive.

5.  Buy a Calibra off ebay for £5-800, fly here, drive back, swap the bits, sell the rest.

You should be able to buy any Calibra in any country in Europe through ebay. I had a Calibra from Italy so there are a few there just a ferry to get for you.

whatever calculations I make it's just not worth it. In my country every C20XE has been raced to death. every engine is just well... tired.
everybody was stupid enough to try to outsmart the factory, so all kinds of stupid modifications have been done to these engines... Really tough to find a car that hasn't been butchered.

Offline electric geen

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Re: C20XE Ignition Problem
« Reply #24 on: April 09, 2018, 11:55:47 AM »
If we go back to the original problem which is advance/retard issues, I had a chance to look through a similar file from equiqip? on the Motronic ECU. It really looks to me that your crankshaft sensor is playing up or failed. I don´t know how much knowledge you have on testing or can find someone who has, but the best way forward is to test every sensor and component that has an effect on ignition. The pdf Bosch Motronic file on Google goes into some depth on what sensor affects ignition retard/advance.

You going to have to test each and every sensor using either a multimeter or oscilloscope, I do this in my job everyday testing High Speed Trains that are 40+ years old, and they fail a lot.... That's why I suggested going to a tuner, because this is what they would do first before replacing faulty components.

It´s tough, exasperating but the basics have got to be done, starting with lining up the cam belt to the crankshaft and cam and distributor, you will learn more than you want to, but your into cars then you got to learn, your Calibra is not a problem it's an opportunity!!!?!!