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Author Z18XE on Throttle bodies 200bhp pg 33 any one for head?
Vaux Lad
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Registered: 15th Dec 04
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30th Mar 08 at 20:38   View User's Profile U2U Member Reply With Quote
But that wouldn't cause the crank signal to keep dropping?
Dave A
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30th Mar 08 at 20:39   View User's Profile U2U Member Reply With Quote
what sensors are you using all together?

if the crank sensor is allowing the engine to start and run then its likely that another sensor is at fault, I have seen a faulty TPS sensor causing similar problems.

do you have an oscilloscope to read the crank sensor signals?
Dave A
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30th Mar 08 at 20:41   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Vaux Lad
But that wouldn't cause the crank signal to keep dropping?



sometimes it can, if the ecu sees a negative load it can cut spark and /or fuel for safety. I have seen this happen with a Gems ECU.

need to determine wether the signal itself is dropping or wether the ecu is causing the signal to cut. (hence my oscilloscope question)
Warren G
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30th Mar 08 at 20:47   View User's Profile U2U Member Reply With Quote
all sensor are being used right now

all i keep doing is swapping looms over everytime

running all standard apart from a extra airtemp sensor, with is all working fine on the car atm

tps
crank
coolant temp
air temp
o2 sensor

the tps and injector are still on the same loom as i am still using the oe plug for the injection loom

i dont have a oscilloscope so cant check

the only thing thinknig about it now is, i worked out the timing of the crank signal, but when using a timing light i had to adjust it massively to get the correct timing, so picking up the wrong signal?

its all set up for a 60-2 gm trigger wheel




[Edited on 30-03-2008 by warren.g]

[Edited on 30-03-2008 by warren.g]
Dave A
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30th Mar 08 at 21:08   View User's Profile U2U Member Reply With Quote
got a screenshot of your ignition map?
pow
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30th Mar 08 at 21:15   View Garage View User's Profile U2U Member Reply With Quote
Technical discussion, im learning loads here
Warren G
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31st Mar 08 at 21:51   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dave A
got a screenshot of your ignition map?


no but will if you want to look

dont supose you have igntion table i could copy to get me started? as similar engines, to give me a base anyway


swapped crank sensor wires over, and guess what, it revs
whoop whoop, procress

just bought my wideband o2 sensor with controller

will map at weekend, enough to get me running safety

then will dial cams in properly before do the final map

Vaux Lad
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31st Mar 08 at 23:58   View User's Profile U2U Member Reply With Quote
Sweet

What map is it running on atm?
Dave A
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1st Apr 08 at 10:11   View User's Profile U2U Member Reply With Quote
great news warren
Warren G
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1st Apr 08 at 17:42   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Vaux Lad
Sweet

What map is it running on atm?


the standard base map that was loaded to get me running

so got to get the timming set up better, fit 2.0l injectors, lower fuel pressure

and have a few hours of fun

[Edited on 01-04-2008 by warren.g]
Warren G
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1st Apr 08 at 17:44   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dave A
great news warren



got a copy of your igntion map dave?

what do you have 12x12 map?
Dave A
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2nd Apr 08 at 09:13   View User's Profile U2U Member Reply With Quote
send me a copy of yours to: vsportsales@aol.com (screenshot will do) and I will send back a table you can use as a base map.
Warren G
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6th Apr 08 at 15:44   View User's Profile U2U Member Reply With Quote
will do that next time i can be bothered with it


fitted the wide band o2 sensor, rewired all in

set up, programmed in, worked for a few minutes, no doesnt work no readings at all.

so couldn't even run the car do a base map, going down to be scrapped soon if carries on like this
Linch
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6th Apr 08 at 15:58   View User's Profile U2U Member Reply With Quote
Problem warren?
gavin18787
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6th Apr 08 at 16:08   View Garage View User's Profile U2U Member Reply With Quote



It will get there eventually

Drives supercharged Tec with torque
Dave A
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6th Apr 08 at 16:22   View User's Profile U2U Member Reply With Quote
if I were you I would scrap the silly megasquirt and get a budget ecu kit that works properly.
broster
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6th Apr 08 at 16:24   View Garage View User's Profile U2U Member Reply With Quote
or id scrap the megasquirt and get a proper ecu for a decent cost (gotech)
Dave A
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6th Apr 08 at 16:26   View User's Profile U2U Member Reply With Quote
same thing then

2 things I no longer do, work on megasquirt and set up carbs.
broster
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6th Apr 08 at 16:27   View Garage View User's Profile U2U Member Reply With Quote
gotech is NOT a buget ecu, im going to put the cost up of it to make people realise this.
Warren G
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6th Apr 08 at 16:48   View User's Profile U2U Member Reply With Quote
personly i blame this innovate wide band controller crap

not my megasquirt


megasquirt would be running fine by now if the wideband controller was doing its job

might just take it and get it mapped then theres no need for it
Corsa E-Tec
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Registered: 4th Feb 04
Location: Stevenage Drives: Leon Cupra
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6th Apr 08 at 18:03   View User's Profile U2U Member Reply With Quote
wow you've been busy warren, looks good, look forward to see'ing it mate
Robin
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6th Apr 08 at 18:32   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by warren.g
personly i blame this innovate wide band controller crap

not my megasquirt


megasquirt would be running fine by now if the wideband controller was doing its job

might just take it and get it mapped then theres no need for it


What innovate stuff have you got?
Warren G
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6th Apr 08 at 19:11   View User's Profile U2U Member Reply With Quote
LC-1 wideband controller and o2 bosch o2 sensor

typical, get something works for 5 minutes then just decideds not too

has power, has a good earth, so it should work
Vaux Lad
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6th Apr 08 at 19:36   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dave A
if I were you I would scrap the silly megasquirt and get a budget ecu kit that works properly.

Whats the MS got to do with a wideband lambda controller not working?


Warren-Have you checked simple things like fuses on the controllers live etc?
Checked the live/earth with a meter?
Warren G
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6th Apr 08 at 19:44   View User's Profile U2U Member Reply With Quote
yes, have 12volts going to controller, have 5volts going to sensor

have good earth (connected straight to battery)

sensor has earth

heaters in o2 sensor not working as not getting hot, LED not working now (was at first)

no reading coming back from controller for megasquirt signal

am sending back to phil and his going to test it, yet another delay

plus im now runnnig on blue redtop injectors, runs shite will change them back during the week (again )

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