VIDEO ADDEDGlanza spluttering / missing whilst starting to boost

[dangeestarlet]

Hi just put a new engine in my starlet and as soon as it starts to come on boost it spluttere like mad and pop and bang, it's overfilling like mad and black smoking , done a diagnostic and it says coolant circuit incomplete and map sensor circuit, any help would be great

Edited November 15, 2014 by dangeestarlet

[daniel_g]

Sort fuelling and swap the MAP sensor for another one. Also make sure the vac to the sensor is in good condition.

Then onto ignition checks if that doesnt sort it.

[dangeestarlet]

It has stock fpr, means more money again for map sensor lol. It's puffing out black smoke and blowing hoops through my side exit haha.

[daniel_g]

You got leaky injectors then maybe ? Check the wiring to the MAP sensor. Thought youd have a spare MAP sensor knocking about with the amount of starlets you've had haha.

[dangeestarlet]

What do you mean by leaky injectors? They feel pretty loose on the rail, I checked everything when I moved houses lol

[mikey4410]

has the map circuit had a fcd wired in at sumpoint ?

have a check over the wiring near ecu.

also I have had a shit missfire and not allowing to boost before and it was a fuse blow in fuse box.

[daniel_g]

If the injectors are leaking too much fuel into the combustion chamber and overfuelling it. Theres only really a few things it can be when its shooting out pure black smoke.

[mikey4410]

check all fuses.

then check all vac lines.and as I said check all wiring around the ecu for a poorly fitted fcd or similar

[dangeestarlet]

Ok thanks , it's got a hks actuator and the vacum is looped onto turbo ? Is that right? And the only other vaccum I got is map sensor to inlet, il check ecu tommorow , the only thing I can think off is I ain't got no temp sensors plugged in as the engine I had was a 98 spec and mines a 96 with different plugs

[dangeestarlet]

Ok thanks , it's got a hks actuator and the vacum is looped onto turbo ? Is that right? And the only other vaccum I got is map sensor to inlet, il check ecu tommorow , the only thing I can think off is I ain't got no temp sensors plugged in as the engine I had was a 98 spec and mines a 96 with different plugs

[Stu]

You need to have the water temp sensor plugged in for the ecu or it will run as described above if at all.

[dangeestarlet]

Done temp sensor now, it's giving codes , map sensor, air temp sensor and coolant sensor

[dangeestarlet]

http://youtu.be/tNu7udlHCz8

[dangeestarlet]

Bump anyone?

[patman]

Looking at them flames mate are you sure it's not well over fueling?

[dangeestarlet]

Yeah it iverfuelling like mad lol

[mikey4410]

A typical question would be what are ure afrs ? And the typical answer is I havent got a afr gauge.

This would tell you an awful lot, but on a serious note that looks like you have anti lag and looks sick.prob not doin car to much good though.

[dangeestarlet]

I ain't got a gauge no lol, would it be fuel cut by any chance?

[mikey4410]

Possibly but they way your making it do whatever it is in he video you wana hope it's not as you have poss done some serious damage.

[dangeestarlet]

She's running abit better today, something's definitely not right tho

[dangeestarlet]

would the ignition timing cause this?

[satyrs]

hiya, im no glanza expert in any case, but i am technician working at VW/audi.

to break it down step by step.

engine fueling is done by the ecu what needs to following sensors to do a correct engine cycle.

-cranck pos sensor

-engine rpm

-air amount/ air temp

-cooling temp

-trothle pos

-lambda sensor

-knock sensor

if any of those sensor gives a faulty ready the ecu will adapt to that false reading.

after diagnostics you tell us that you have 2 faults: Map sensor and coolant temp.

the coolant temp sensor gives a signal to the ecu that your engine is warm or not. this means it will use more fuel when cold readings and "less" at warm readings.

try to find the sonsor qualifications of how much resistance at what temp it should give. so you can test it outside of the car. if it keeps telling the ecu that he is cold he will use more fuel. would it be enough to cause a malfunction as this.... duno cant tell....

the second is the map sensor.

this measures the amount of pressure in the manifold, what is needed for a correct amount of fuel.

this sensor can also be measure by a handpomp. most of those sensors have a liniar volt measurement. ( like: 0.1bar=1volt 0.2bar=2volt)

check if those sensors are functialy properly and check the ecu if it gives any codes.

after that happy hunting on the rest of the sensors.

hope it helps,

grtz,

Wouter (p.s. im not english so dont mind the typo's)

Edited November 17, 2014 by satyrs

[dangeestarlet]

Hello and thanks for your help,

I have purchased new coolant sensors and map sensor along with new injectors and new coil and igniter , I will also gap the spark plugs to correct gap and also set ignition timing, it is probably something simple and I will let you know how I get on when I fit new parts and try it again, thanks again for your help : D

[Stu]

Done temp sensor now, it's giving codes , map sensor, air temp sensor and coolant sensor

All of those sensors share the same sensor earth array fed from the ecu. I'd check the wiring and its pretty uncommon for the sensor to be faulty. Does it have a fcd on it by any chance?

[dangeestarlet]

Is there any earths to ecu? As I swapped ecu as I had a jam one in before ,it looks like it's had a fcd before as wires have been cut and joined