Any ideas after timing belt swap

[Davsurfa]

So my timing belt snapped on Friday. I've changed it and fitted a new one but I'm still getting fault code 21 which I can't clear. The engine turns over but won't fire. Any ideas? Its a 94 G-Ltd

[gnzyza]

Isn't code 21 o2 sensor, might be wrong

[Davsurfa]

It is but I can't find it

[Davsurfa]

I have spark, fuel, all the timing marks were lined up when I put the belt on. It does sound like the fuel isn't getting through

[Davsurfa]

Could the 21 code refer to a crank or cam sensor instead of o2?

[raptor95GTS]

here's a link to the error codes http://www.formesyn.com/mr2t/mr2tfaq.ht ... CU%20Codes:

[Davsurfa]

Would a defective lambda sensor stop the car starting?

[Davsurfa]

Cheers for the link

[thomp1983]

No a faulty lambda wouldn't stop it starting, get some easystart or carb spray, spray a small amount in the intake if it starts it's a fuelling issue

[Ryan S]

Are you 100% sure the timing isn't 180 degrees out? I've seen this many many times on here in the past.

[Davsurfa]

The timing marks were all lined up, silly question but could it be 180 out? There are only one set of marks on the cams

[MartinF]

The timing marks were all lined up, silly question but could it be 180 out? There are only one set of marks on the cams

Yes, the crankshaft turns twice for every one revolution of the cams.

[Davsurfa]

But if I turn the crank 180 the timing mark won't line.

[mr2magic]

Have you checked the wiring? Check that the 4 pin dizzy connector (relatively well hidden on the dizzy housing at about 5 o'clock when looking at it face on).

[ashley]

Are you 100% sure the timing isn't 180 degrees out? I've seen this many many times on here in the past.

How so? The cam's pointing down instead of up, with the crank at TDC?

But if I turn the crank 180 the timing mark won't line.

If you have the two timing marks on the cams lined up, is the crank pulley timing mark lined up with TDC on the lower timing cover? If so you have done it right

[Davsurfa]

The cams have a dot and an s on one spoke, those are lined up at the top. The crank has a white mark on it which I lined up with the gap in the casing underneath the cog. I'm thinking when the belt has been changed in the past they marked it with white paint to match the cams so the white paint should be at the top. I didn't look for a factory mark on the crank cog, I just assumed that the white mark should be lined up with the gap. That way the crank would be 180 degrees out. Does anyone know what the factory mark looks like on the crank?

[ashley]

[Davsurfa]

LEGEND!!! Thank you for that, now all I've gotta do is strip it all down again

[Ryan S]

LEGEND!!! Thank you for that, now all I've gotta do is strip it all down again

So it was 180 out?

[Davsurfa]

I'll be honest, it's on the drive and it's lashing down with rain so I'll pull it apart tomorrow before work and let you know but I'm pretty certain it is. As always you lot are awesome, cheers