bypass complete
Discussion
hi guys finished the immobilser bypass so car up and running,the problem now is the 20amp fuse keeps blowing on the modwise kit when turning the ignition.If I disable the modwise kit the car starts first time no problems but obviously there is no relay protecting the ignition.My question is do I do away with the modwise kit and just fit a relay on the looped wire I cut to fit the kit(I fitted the kit around 6 months ago)or is this an ignition switch fault causing the fuse on modwise kit to blow,need to narrow down my options. cheers
Have you checked the condition of your earth(s) & the main supply wire to the starter?
The factory fitted wire to the starter was marginal at best and over the years will of detriorated somewhat!
If either of these are bad the resistance will be much higher resulting in more current being drawn & popping the fuse.
You could use a set of jump leads to provide the starter a temporary good connection to prove this theory.
Ignition switch is also a possible culprit and cheap & easy to replace (about £15) so might be worth starting with that,
The factory fitted wire to the starter was marginal at best and over the years will of detriorated somewhat!
If either of these are bad the resistance will be much higher resulting in more current being drawn & popping the fuse.
You could use a set of jump leads to provide the starter a temporary good connection to prove this theory.
Ignition switch is also a possible culprit and cheap & easy to replace (about £15) so might be worth starting with that,
Edited by ukdj on Saturday 17th January 17:53
The ModWise relay isn't really in the right place in the circuit, it's also a rather poorly wired Heath Robinson effort so I'd rip it out and start again.
If you were starting from scratch & wanted to fit a starter solenoid relay you wouldn't do it the ModWise way, you'd put the relay as close to the starter solenoid as possible.
A relay on the low amp starter solenoid circuit is a belt & braces best practice nice to have, but the truth is it isn't strictly essential.
In my opinion you're better off having no relay at all than the dodgy amateur ModWise effort which only adds another potential point of unreliability.
Rip it out, then measure the true amps at the starter solenoid to reassure yourself you're not overloading the existing wiring, you'll then have years of trouble free starting now your immobiliser is bypassed on the starter circuit
Dave.
If you were starting from scratch & wanted to fit a starter solenoid relay you wouldn't do it the ModWise way, you'd put the relay as close to the starter solenoid as possible.
A relay on the low amp starter solenoid circuit is a belt & braces best practice nice to have, but the truth is it isn't strictly essential.
In my opinion you're better off having no relay at all than the dodgy amateur ModWise effort which only adds another potential point of unreliability.
Rip it out, then measure the true amps at the starter solenoid to reassure yourself you're not overloading the existing wiring, you'll then have years of trouble free starting now your immobiliser is bypassed on the starter circuit
Dave.
ChimpOnGas said:
The ModWise relay isn't really in the right place in the circuit, it's also a rather poorly wired Heath Robinson effort so I'd rip it out and start again.
If you were starting from scratch & wanted to fit a starter solenoid relay you wouldn't do it the ModWise way, you'd put the relay as close to the starter solenoid as possible.
A relay on the low amp starter solenoid circuit is a belt & braces best practice nice to have, but the truth is it isn't strictly essential.
In my opinion you're better off having no relay at all than the dodgy amateur ModWise effort which only adds another potential point of unreliability.
Rip it out, then measure the true amps at the starter solenoid to reassure yourself you're not overloading the existing wiring, you'll then have years of trouble free starting now your immobiliser is bypassed on the starter circuit
Dave.
If you were starting from scratch & wanted to fit a starter solenoid relay you wouldn't do it the ModWise way, you'd put the relay as close to the starter solenoid as possible.
A relay on the low amp starter solenoid circuit is a belt & braces best practice nice to have, but the truth is it isn't strictly essential.
In my opinion you're better off having no relay at all than the dodgy amateur ModWise effort which only adds another potential point of unreliability.
Rip it out, then measure the true amps at the starter solenoid to reassure yourself you're not overloading the existing wiring, you'll then have years of trouble free starting now your immobiliser is bypassed on the starter circuit
Dave.
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