Vauxhall Astra Running Problem

[Spudhaynes]

Hi All i am new to this but i thought i would give it a go i have bought a Astra estate with a blown engine i have replaced the engine with a recon unit.
Now i have a spanner lamp on after about i minute of running and the engine wont rev above 4000 RPM
I have tried a new cam sensor but no good by the way there are no codes stored.

Hope some one can help

Spudhaynes

[Spudhaynes]

Hi all thanks for reply's i have cured the spanner light on on tick over i found broken wire on radiator switch but now the problem is it will not rev over 4000 rpm and then spanner light comes on.
I have checked with code reader and it comes up with crank sensor i have bought a new one but it will not start with new one fitted when i fit the original one back it fires and runs great but will not rev over 4000 rpm any ideas. I have also tried a second cam sensor.
Some one told me if there is no rpm signal it will use the cam signal to run may be the crank sensor is faulty and allowing the cam sensor to take over.Then when the new rpm sensor is fitted its not allowing it to run.

Ever hopeful Spud

Astra 55 plate z1.6xep Twinport

Sorry cant stay online for to long.

Edited by Spudhaynes on Wednesday 22 May 12:35

Edited by Spudhaynes on Wednesday 22 May 19:07

[Spudhaynes]

Hi Crafty thanks for that yes i am using the same engine loom the car came with and when i get back from a trip a mate is going to come round with tech 2 so then i hope to find fault.

[Spudhaynes]

Hi there Disco yes it is a pattern sensor but i have a Vauxhall one as well and it does the same i have tried a second hand sensor and pattern sensor and a new vauxhall sensor plus a second cam sensor still the same .


Spudhaynes

[Spudhaynes]

Hi All still got problem with engine revving to 4000 and then bouncing code for crank sensor replaced sensor car will not start put old sensor back engine fires and runs to 4000 rpm checked wiring to sensor all ok continuity from brown wire at multi plug and grey wire at ecu plug good.
Is it possible to get the valve timing 180 out as i don't think this is the case but cam belt timing was done by engine rebuild company.

Any advice gratefully received

Spudhaynes

[Spudhaynes]

Hi all still got the problem with the Astra i have been to a Vauxhall dealer and tech 2 says crank shaft sensor out of range this happens at 4000rpm have checked the sensor pick up all seems ok but when the pick up point on the ring is in site of sensor hole the crank pully is not at tdc is this correct as i thought it should be at TDC.
Also when new sensor fitted it starts and dies if i fit old sensor it starts and runs ok but will not rev above 4000 rpm.

Getting very frustrated now

please any help or ideas would be great

spudhaynes

[Spudhaynes]

Thanks crafty the info about missing teeth on ring was what i am trying to find out so the 60% is about right so now i will speak to engine builders to find out if they replaced ring or if i drop sump will it effect my three month warranty. then i can look for damage.

Regards Spudhaynes