Firing Sequence

[kirst_ie]

Hiya Folks

Just two quick questions.

Does anyone know the firing sequence for a 1994 Gen 6 UK Celica?

Also what ohms should you ignition leads be putting out

Mine are as follows:

1) 11.19

2) 9.35

3) 7.85

4) 12.05

I really need to know this as i have got a slight jult whislt driving in mainly 3rd and something 4th, tutor reckon its could be worth changing the plugs and the leads.

Any advise would be great.

Ta, Kirstie

[mikeb]

Firing order is 1-3-4-2. I think just about every I4 engine is.

Not sure if then gen 6 has coil packs or a dizzy, but the coil primary should measure about 0.5 ohms, the secondary should be about 10k ohms. Not sure what units those numbers are that you gave - but if they're k ohms across each coil pack, they are probably about right. Anyway, a failed coil/coilpack is not usually an intermittent fault - it's normally terminal.

It's difficult to measure the HT leads for breaking down, but it might be worth spraying wd40 or similar around the dizzy/ign components if they are damp. Otherwise you might just need a new set of plugs.

[sotal]

Have you tried doing the night time test?? Wait until it's pitch black then get someone to rev the engine whilst you look under the bonnet for stray electricity.